What number should come in place of the question mark below?

What jumps when it walks and sits when it stands?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

What does this mathematical rebus means ?

What does the below rebus riddle means?

An equation has been laid down using a few matchsticks. However, as you can see, the equation is not correct. Can you correct the equation if you are allowed to add or remove 5 matchsticks?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

I got a bee but no honey.
got an eye but am still blind.
got a sea but no water.
got a tea but no coffee.
got a why but no answer.

What Am I?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

James bond was pushed out of an aeroplane without any parachute.
He survived, How come?