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?

People are waiting in line to board a 100-seat aeroplane. Steve is the first person in the line. He gets on the plane but suddenly can't remember what his seat number is, so he picks a seat at random. After that, each person who gets on the plane sits in their assigned seat if it's available, otherwise, they will choose an open seat at random to sit in. The flight is full and you are last in line. What is the probability that you get to sit in your assigned seat?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?

What jumps when it walks and sits when it stands?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

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

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Rectify the following equality 101 - 102 = 1 by moving just one digit.