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?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Name a key which is hardest to turn.

This one is a popular quiz/puzzle. Can you find out the names of the websites depicted using the emojis in this picture?

Solve the mathematical equation in the picture below.

I shave every day, but my beard stays the same. What am I?

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

You need to arrange three 7 and mathematical symbols to form number 1?