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.

You need to move three matchsticks to form three squares. Can you do it?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

What can go up a chimney down, but can’t go down a chimney up?

If eleven plus two equals one, what does nine plus five equal?

How many times can you subtract the number two from the number fifty?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

What has many keys but can’t open a single lock?

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?