John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

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

which number am I?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Take one out and scratch my head, I am now black but once was red. What am I?

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

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

Samuel was out for a walk when it started to rain. He did not have an umbrella and he wasn't wearing a hat. His clothes were soaked, yet not a single hair on his head got wet. How could this happen?

The host of a game show offers the guest a choice of three doors. Behind one is an expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What Time Should the last watch show in the below figure?