The centre of the third figure is empty. What digit should fit inside?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

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?

If 1+9+8=1, what is 2+8+9?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

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

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?