John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

In case you were starting to feel confident, this one was meant for third graders in Vietnam. The answer is 66, but we don't blame you for scratching your head about how they got there.

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

How many times can you subtract the number 5 from 25?

The Little ant seems to be always confused. Do you know why?

Can you find out the next digit in the following series ?

0, 0, 1, 3, 2, 6, 3, 9, 4, 12, 5, ?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

Can you count the number of triangles inside a triangle?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?