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?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

Buy me, smell me or deliver me, I do not change.

Who am I?

John Went to the nearby store in a Mall to buy something for her home. Below is the conversation between the two:

John: How much for the one?
Shopkeeper: It is $2
John: How much for the Eleven?
Shopkeeper: It is $4
John: How much for the Hundred?
Shopkeeper: It is $6.

What is John buying?

Can you find out the missing number?

? 4 5 3 5

9 5 7 10 3

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Replace the question mark with the correct number in the below-given picture?

Forwards I am heavy, backward I am not. What am I?

If your uncle’s sister is not your aunt, what relation is she to you?