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?

Find the number of squares in the below picture

John is the son of Jacob.
So,
Jacob is the_____of John's father?

What begins with T, ends with T, and has T in it?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

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?

Count the number of squares in the picture below.