I am a prime number.
The double of myself is equal to the square of me.

which number am I?

The owner of a popular clothing store comes up with his own method of pricing items. A vest costs $8, socks cost $10, a tie costs $6, and a blouse costs $12. Using the owner’s method, how much would a pair of underwear cost?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

Why do people go to bed?

Who always enjoys poor health?

Remove two matchsticks to make the below equation correct.

What has no start, end, or centre?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

I’m tall when I’m young, and I’m short when I’m old. What am I?