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?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

It can't be seen, can't be felt, can't be heard, and can't be smelt.
It lies behind stars and under hills, And empty holes it fills.
It comes first and follows after, Ends life, and kills laughter.
What is it?

How can you make number one disappear by adding something to it?

Which letter of the alphabet has the most water?

In the four images below, can you find the odd one out?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

You’ll find me on Mercury, Earth, Mars, Jupiter, Saturn, and Uranus. But never Neptune, or Venus. What am I?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?