If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

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

A lily pad doubles in size every day. If on the 60th day, the pond is exactly filled with the lily pad, on what day is the pond exactly half covered?

A man had five children. He had $100 with him to give to his children. He decided to start with the youngest child and then give $2 more than each younger child to his next elder child.

For example, if he gives $x to the youngest child, he will give $(x+2) to the next one, $[(x+2) + 2] to the next one and so on.

Can you find out how much did the youngest one receive?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

What happened when the wheel was invented?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?