Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

If six children and two dogs were under an umbrella, how come none of them got wet?

What's the only room from which no one can enter or leave

A very interesting trivia question for all.

Why do men's shirts have their buttons on the right side and women's have buttons on the left-hand side?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

What do you answer even though it never asks you questions?

Can you identify the Oscar-winning movie from the rebus below?

I am white when I am dirty, and black when I am clean. What am I?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?