The host of a game show, offers the guest a choice of three doors. Behind one is a 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?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

Count the number of balls in picture below:

There is something which you can be arrested for attempting but not for successfully completing.

Can you find out the missing number in the grid?

If 21x = 79x, what is the value of x?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

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

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?