Please read the Explanation of Nawawi's 40 Hadeeths by Shyakh Al-Uthaymeen, available in English. If you are not memorising the hadeeths, then you might wish to skip the first two questions.
This statement tells us that good and pure food is only that which is produced organically
This refers to that which is good in its very nature (so alcohol is not accepted)
This refers to that which has been acquired lawfully (so usury/interest is not accepted)
This refers to natural hair colour (so dying hair is not permissible)
This refers to non-polluting means of deriving power (so coal-burning power stations are not permissible)
He will go to the Hellfire forever because he has committed a major sin.
His sin is of little consequence because it is a lesser sin
This was only important for the messengers. The rest of the Muslims have not been commanded with this.
It might prevent his/her duaa/supplications from being answered.
Standing in a desert
Being a traveller
Being dishevelled and dusty (for example on the Day of Arafah during Hajj)
Having clothing which is haraam
Standing calling on Allaah by His Lordship (for example by saying, "Yaa Rabb!")
Beginning our du'aa by mentioning Abu Bakr's name
Asking the Prophet sall Allaahu alaihi wa sallam to be an intermediary
Raising our hands to the sky
Allaah is free from every deficiency
Allaah's actions are good
When we say a person is tayyib it means that he is just like Allaah
Allaah's Self and Attributes are good
Neither preferred nor disliked (mubaah)
Doing righteous actions
Limited to speech alone
An action of the tongue, not of the limbs
Even more virtuous than affirming tawheed (affirming that Allaah alone should be worshipped)
Here's an interesting quiz for you.