No one wants to have it, but if one got it, he does not want to lose it. What is It?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

How can you leave a room with two legs and return with six legs?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

Which alphabet is a part of our body?

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?