Which is the smallest number that you can write using all the vowels exactly once?

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

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.

In which direction should the missing arrow point?

Spot the cat in the picture below

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

If a wheel has 54 spokes, how many spaces are there between the spokes?

Count the squares in the matchstick puzzle below?

What will you call your mother's brother's brother-in-law?

Why are all black people so quick ?