Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

Which point will the car reach to go out?

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?

What goes up but never comes down?

How many words can a pen with half refill write?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

You can hear me, but you can't touch or see me.

What am I?