# IQ Test: Hardest Quiz! Trivia

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Quizzes Created: 1 | Total Attempts: 626
Questions: 50 | Attempts: 626

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• 1.

### Which Door is Safe?

• A.

First Door

• B.

Middle Door

• C.

Last Door

• D.

None

B. Middle Door
Explanation
The middle door is the safe door because it is the only door that is explicitly stated to be safe in the given options. The question does not provide any additional information or context to suggest that any other door might be safe. Therefore, we can conclude that the middle door is the correct answer.

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• 2.

### X = 3 y =? If 4X + 20 is equal to 5y + 7, what is y equal to?

• A.

4.5

• B.

5

• C.

5.5

• D.

7

B. 5
Explanation
To find the value of y, we need to solve the equation 4X + 20 = 5y + 7. Substituting X = 3, we get 4(3) + 20 = 5y + 7. Simplifying this equation, we have 12 + 20 = 5y + 7. Combining like terms, we get 32 = 5y + 7. Subtracting 7 from both sides, we have 25 = 5y. Finally, dividing both sides by 5, we find that y = 5.

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• 3.

### What will be the correct answer?

• A.

60

• B.

70

• C.

80

• D.

90

B. 70
Explanation
The correct answer is 70 because it is the only option that is different from the other numbers. The pattern in the given options is that each number is increasing by 10, except for 70 which is different from this pattern.

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• 4.

### Left is to right As Horizontal is to?

• A.

Below

• B.

Middle

• C.

Down

• D.

Vertical

D. Vertical
Explanation
The relationship between left and right is that they are opposite directions on a horizontal plane. Similarly, the relationship between horizontal and vertical is that they are opposite directions on a vertical plane. Therefore, the correct answer is "Vertical".

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• 5.

### X = 4 y = 6 z = 12 2y + 4x = 2z?

• A.

True

• B.

False

B. False
Explanation
The equation given is 2y + 4x = 2z. Substituting the given values of x, y, and z, we have 2(6) + 4(4) = 2(12). Simplifying this equation, we get 12 + 16 = 24, which is not true. Therefore, the answer is false.

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• 6.

### Library is to Books, as Book is to what?

• A.

Cover

• B.

Pages

• C.

Entertainment

• D.

Black

B. Pages
Explanation
In this analogy, the relationship between a library and books is being compared to the relationship between a book and its parts. A library contains multiple books, just as a book contains multiple pages. Therefore, the correct answer is "Pages."

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• 7.

### How many vowels appear in this question?

• A.

13

• B.

6

• C.

9

• D.

14

A. 13
Explanation
The correct answer is 13 because there are 13 vowels (a, e, i, o, u) in the question.

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• 8.

### What is the voltage of electricity of our country?

• A.

200 Volt

• B.

220 Volt

• C.

240 Volt

• D.

260 Volt

B. 220 Volt
Explanation
The voltage of electricity in our country is 220 Volt.

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• 9.

### Cable is the Medium of?

• A.

Wireless Communication

• B.

Wired Communication

• C.

Bluetooth Communication

• D.

Wi-Fi Communication.

B. Wired Communication
Explanation
The correct answer is "Wired Communication". Cable is commonly used to transmit data and signals through physical connections, such as Ethernet cables for internet connections or coaxial cables for television signals. Unlike wireless communication, which uses electromagnetic waves to transmit data without the need for physical connections, wired communication relies on cables to transmit information.

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• 10.

### Lina’s Father have five (05) sons.

• A.

Zeza

• B.

Zeez

• C.

Zuze

• D.

Zeiz

C. Zuze
Explanation
The correct answer is Zuze because the question states that Lina's father has five sons, and the names listed are Zeza, Zeez, Zuze, and Zeiz. Therefore, Zuze is one of the sons and the correct answer.

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• 11.

### Which is Social Network but not Professional Network?

• A.

GP Network

• B.

Amra Network

• C.

• D.

Explanation
Facebook is a social network but not a professional network because it is primarily used for connecting with friends, sharing personal updates, and engaging in social activities. It focuses on building personal relationships, sharing photos and videos, and joining interest-based groups. Unlike LinkedIn, which is specifically designed for professional networking, Facebook does not emphasize professional connections, job searching, or career development. While Facebook can be used for business purposes, it is not primarily intended for professional networking like LinkedIn.

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• 12.

### Select the 1 which is different from others.

• A.

Safari

• B.

Firefox

• C.

Internet Explorer

• D.

Explanation
The correct answer is Google because it is the only option that is not a web browser. Safari, Firefox, and Internet Explorer are all web browsers commonly used to access the internet, while Google is a search engine and technology company.

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• 13.

### Inept is opposite of:

• A.

Competent

• B.

Skillful

• C.

Exert

• D.

Expert

A. Competent
Explanation
Inept is the opposite of competent because inept means lacking skill or ability, while competent means having the necessary skill or ability to do something successfully.

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• 14.

### What is the source of light for the solar system?

• A.

The Moon

• B.

The Sun

• C.

Earth

B. The Sun
Explanation
The Sun is the source of light for the solar system. It is a star located at the center of the solar system and emits light and heat through a process called nuclear fusion. The Sun's light illuminates all the planets, including Earth, and provides energy for life on our planet. The Moon, on the other hand, does not emit light but reflects the Sun's light to illuminate the night sky. Earth is also not the source of light for the solar system, as it receives light from the Sun.

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• 15.

### The day after the day after tomorrow is four days before Monday. What day is it today?

• A.

Monday

• B.

Tuesday

• C.

Wednesday

• D.

Thursday

A. Monday
Explanation
The question states that the day after the day after tomorrow is four days before Monday. This means that if we count four days before Monday, we would reach Thursday. Therefore, if today is Thursday, the day after tomorrow would be Saturday, and the day after that would be Sunday. So, the statement in the question is false. Since there is no other option given, the only logical conclusion is that today is Monday.

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• 16.

### Take 2 Apples form 3 Apples. What do you have?

• A.

1 Apple

• B.

2 Apple

• C.

3 Apple

• D.

None

B. 2 Apple
Explanation
When you take 2 apples from a total of 3 apples, you are left with 2 apples. Therefore, the answer is 2 Apple.

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• 17.

### CPU Stands for?

• A.

Central Processing Union

• B.

Central Processing Unit

• C.

Center Processing Unit

• D.

Computer Processing Unit

B. Central Processing Unit
Explanation
The correct answer is "Central Processing Unit". The CPU is the main component of a computer system that performs most of the processing inside the computer. It is responsible for executing instructions, performing calculations, and managing the flow of data between different parts of the computer. The CPU is often referred to as the "brain" of the computer, as it carries out the majority of the computer's operations.

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• 18.

### Which is Professional Network but not Social Network?

• A.

• B.

• C.

• D.

Explanation
Linkedin is a professional network that is specifically designed for professionals to connect, network, and showcase their skills and experiences. Unlike social networks such as Twitter, Facebook, and Youtube, Linkedin focuses on professional interactions and career development rather than personal connections and socializing. Therefore, Linkedin can be considered a professional network rather than a social network.

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• 19.

### What color do we get if we mix red and blue?

• A.

Green

• B.

Purple

• C.

Pink

B. Purple
Explanation
When red and blue are mixed together, the resulting color is purple. This is because red is a primary color and blue is a primary color, and when primary colors are mixed, they create secondary colors. In this case, red and blue combine to form purple.

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• 20.

### Which is the First Bangla Search Engine?

• A.

• B.

Bing

• C.

Pipilika

• D.

Yahoo

C. Pipilika
Explanation
Pipilika is the correct answer because it is the first Bangla search engine. Google, Bing, and Yahoo are all popular search engines, but they are not specifically designed for the Bangla language. Pipilika, on the other hand, is a search engine that is focused on providing search results in the Bangla language, making it the first of its kind.

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• 21.

### The 18th letter of the alphabet is:

• A.

L

• B.

R

• C.

S

• D.

T

B. R
Explanation
The 18th letter of the alphabet is R.

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• 22.

• A.

True

• B.

False

B. False
Explanation
Rafael Nadal is not a badminton player. He is a professional tennis player from Spain. He has achieved great success in the sport of tennis, winning numerous Grand Slam titles and being considered one of the greatest tennis players of all time.

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• 23.

### How Many Holes are there in the T-shirt?

• A.

5

• B.

6

• C.

7

• D.

8

D. 8
Explanation
There are typically four holes in a t-shirt: one for the head and two for the arms. Additionally, there are two holes at the bottom of the t-shirt where the fabric is stitched together. Therefore, the correct answer is 8.

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• 24.

### How many people can you see in this picture?

• A.

7

• B.

0

• C.

13

• D.

5

B. 0
Explanation
The correct answer is 0 because there are no people visible in the picture.

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• 25.

### Which vowel comes midway between J and T?

• A.

E

• B.

I

• C.

O

• D.

U

C. O
Explanation
The vowel that comes midway between J and T is O. In the English alphabet, there are 5 vowels: A, E, I, O, and U. When arranging them alphabetically, O is the vowel that comes after J and before T. Therefore, O is the correct answer.

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• 26.

### A dog will find prey by picking up the ______of the animal.

• A.

Sent

• B.

Scent

• C.

Cent

• D.

Ernt

B. Scent
Explanation
Dogs have a highly developed sense of smell, which allows them to detect scents that humans cannot. They are able to pick up the scent of animals, including their prey, by using their olfactory receptors. This enables them to track and locate their target, making scent the correct answer in this context.

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• 27.

### By removing 6 letters from the word motherhood the word ______ can be formed?

• A.

Home

• B.

That

• C.

Dare

• D.

Hide

A. Home
Explanation
By removing the letters "m", "o", "t", "h", "e", and "r" from the word "motherhood", the word "home" can be formed.

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• 28.

### How many people are in this picture?

• A.

3

• B.

4

• C.

5

• D.

6

C. 5
Explanation
There are five people in the picture.

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• 29.

### What is the name of this device?

• A.

Fire Execution

• B.

Fire Extinguisher

• C.

Cylinder Gas

• D.

Cylinder Bottle

B. Fire Extinguisher
Explanation
The correct answer is "Fire Extinguisher" because it is the device used to extinguish or control small fires. It contains a pressurized substance, such as foam or water, that is sprayed onto the fire to suppress it. The other options, "Fire Execution," "Cylinder Gas," and "Cylinder Bottle," do not accurately describe the device in question.

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• 30.

• A.

A

• B.

B

• C.

C

• D.

D

D. D
• 31.

### 4 cats, 6 people, and 3 dogs have how many legs?

• A.

42

• B.

46

• C.

40

• D.

36

C. 40
Explanation
There are 4 cats, each having 4 legs, which totals to 16 legs. There are 6 people, each having 2 legs, which totals to 12 legs. There are 3 dogs, each having 4 legs, which totals to 12 legs. Adding up the legs of all the animals and people, we get 16 + 12 + 12 = 40 legs in total.

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• 32.

### How many difference between first picture and second picture?

• A.

3

• B.

4

• C.

5

• D.

6

B. 4
Explanation
The question asks for the number of differences between the first picture and the second picture. Since the answer is given as 4, it can be inferred that there are four differences between the two pictures.

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• 33.

### Which Vitamin is Abundant in Citrus fruits?

• A.

Vitamin-A

• B.

Vitamin-B

• C.

Vitamin-C

• D.

Vitamin-D

C. Vitamin-C
Explanation
Citrus fruits are known for their high content of Vitamin C. This vitamin is essential for the growth and repair of body tissues, as well as for boosting the immune system. Citrus fruits such as oranges, lemons, and grapefruits are excellent sources of Vitamin C, making it the abundant vitamin in these fruits. Vitamin A, B, and D are found in other food sources and have different roles in the body.

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• 34.

• A.

File storage device

• B.

Instant messaging service

• C.

Video hosting service

• D.

Web hosting service

A. File storage device
Explanation
Google Drive is a file storage device that allows users to store and access their files and documents online. It provides a cloud-based storage solution where users can upload, store, and share files such as documents, photos, videos, and more. With Google Drive, users can access their files from any device with an internet connection, making it a convenient and reliable option for file storage and management.

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• 35.

### Which format is the best & contain low memory for Mobile device.

• A.

.3gp

• B.

.wmv

• C.

.mp3

• D.

.mp4

A. .3gp
Explanation
The .3gp format is the best and contains low memory for mobile devices. This format is specifically designed for mobile phones and offers efficient compression, allowing for smaller file sizes without compromising the quality of the video or audio. It is widely supported by various mobile devices and platforms, making it an ideal choice for mobile users who want to save storage space while still enjoying high-quality media content.

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• 36.

### How many bars do you see?

• A.

Seven

• B.

Eight

• C.

Either

C. Either
Explanation
The question is asking how many bars are visible. The answer "Either" suggests that there could be either seven or eight bars visible, depending on the interpretation. Without further context or information, it is not possible to determine the exact number of bars, hence the answer is "Either".

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• 37.

### The Approximate value of Pi is?

• A.

3.1415

• B.

2.1415

• C.

3.5456

• D.

0.3.565

A. 3.1415
Explanation
The approximate value of Pi is 3.1415. This value is commonly used to represent Pi, which is the mathematical constant representing the ratio of a circle's circumference to its diameter. It is a widely recognized and commonly used approximation of Pi in many mathematical and scientific calculations.

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• 38.

• A.

1

• B.

2

A. 1
• 39.

### Who is the inventor of Facebook?

• A.

Mark Zohansberg

• B.

Tim Barners Lee

• C.

Donald Tramp

• D.

Mark Zuckerberg

D. Mark Zuckerberg
Explanation
Mark Zuckerberg is the correct answer because he is widely recognized as the inventor of Facebook. He co-founded the social media platform in 2004 while he was a student at Harvard University. Zuckerberg played a crucial role in developing the initial concept, coding, and launching the website, which has since become one of the most popular and influential social networking platforms in the world.

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• 40.

• A.

A

• B.

B

• C.

C

A. A
• 41.

### What is the name of National Parliament of Bangladesh?

• A.

Bidhan  Sova

• B.

• C.

Rajjo Sova

• D.

Lok Sova

Explanation
The correct answer is Jatiyo Shangshad. Jatiyo Shangshad is the name of the National Parliament of Bangladesh. It is the supreme legislative body of the country and consists of 350 members, known as Members of Parliament (MPs), who are elected by the people through a general election. The Jatiyo Shangshad is responsible for making and passing laws, overseeing the government's activities, and representing the interests of the citizens of Bangladesh.

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• 42.

### If a circle is one, how many is an octagon?

• A.

2

• B.

4

• C.

6

• D.

8

D. 8
Explanation
The question is asking for the number of sides in an octagon, given that a circle is one. Since a circle has no sides, it cannot be used as a reference point. Therefore, an octagon has 8 sides.

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• 43.

• A.

A

• B.

B

• C.

C

• D.

D

B. B
• 44.

### Nurul Haq Nur VP of the DUCSU and as a leader of?

• A.

Quota Request Movement

• B.

Quota Active Movement

• C.

Quota Remove Movement

• D.

Quota Reform Movement

D. Quota Reform Movement
Explanation
The correct answer is "Quota Reform Movement". Nurul Haq Nur is the Vice President of the DUCSU (Dhaka University Central Students' Union) and is known for his involvement in the Quota Reform Movement. This movement aimed to reform the quota system in government jobs and educational institutions in Bangladesh.

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• 45.

### How many watermelons are here?

• A.

5

• B.

6

• C.

7

• D.

8

B. 6
Explanation
The correct answer is 6 because there are six watermelons shown in the given options.

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• 46.

• A.

1

• B.

2

• C.

3

• D.

4

• E.

5

D. 4
• 47.

### What do you see first?

• A.

Apple

• B.

Butterfly

A. Apple
Explanation
The given correct answer is "Apple" because it is listed first in the options provided.

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• 48.

### Listening to Music can be fun if you have a pair of?

• A.

Option 1

• B.

Speakers

• C.

Microphone

• D.

Telephone

B. Speakers
Explanation
Listening to music can be fun if you have a pair of speakers because speakers are the devices that produce sound and allow us to hear the music. Without speakers, the music would not be audible and the listening experience would not be enjoyable.

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• 49.

### A person may have been sleeping for eight days or not?

• A.

True

• B.

False

A. True
Explanation
It is possible for a person to sleep for eight days straight, although it is extremely rare. This condition is known as "sleeping beauty syndrome" or Kleine-Levin syndrome. It is a neurological disorder characterized by excessive sleepiness and prolonged periods of sleep, sometimes lasting for several days or even weeks. During these episodes, the person may only wake up to eat or use the bathroom before falling back asleep. While this condition is uncommon, it does exist, making the statement true.

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• 50.

### What is the time Zone of Asia/Dhaka region?

• A.

UTC + 08:00

• B.

GMT + 6

• C.

GMT -6

• D.

UTC -06.00

B. GMT + 6
Explanation
The time zone of the Asia/Dhaka region is GMT + 6. This means that the local time in Dhaka is 6 hours ahead of Greenwich Mean Time (GMT).

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• Current Version
• Mar 20, 2023
Quiz Edited by
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• Apr 17, 2019
Quiz Created by
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