It is about Roman numbers.
XXV
XXXXV
VVVVVVVVV
XXIV
XVI
VVV
XV
XXXV
XXXXXX
XIII
V V
X
VIIIII
VIVI
All of the above
X X X X VI
X X X
V V V V V
All of the above
None of the above
XXIV
XX
XXXXX
XXX
None of the above
XXXXXXXXXXXX
XXXXXXVIIII
XXXXXXXXXXXXXXXXXXXXXXXXXXV
VVVVVVVVVVVVVVVVVVVVVVX
XXXXXXXXXXXXXXXXXXXXXXX