Spot what is wrong here in below Picture?

You can see it everyday, But cannot touch it at will. What is it?

What is the centre of gravity?

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

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

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

A thief is convicted in Mexico. He gets the death penalty. The judge allows him to say the last sentence to determine how the penalty will be carried out. If the thief lies, he will be hanged, if he speaks the truth he will be beheaded. The thief tells the last sentence and to everybody's surprise some minutes later he is set free because the judge cannot determine his penalty. What did the thief say?

Can you solve the maths in the below-given picture equation?

Who are the happiest people in IPL match?

Find the next number in the series below

21 32 54 87 131 ?