If six children and two dogs were under an umbrella, how come none of them got wet?

The more it dries, the wetter it becomes. Can you tell what it is?

I always drive my customer away.

Who am I?

Buy me, smell me or deliver me, I do not change.

Who am I?

What came first, the chicken or the egg?

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

In a family supper, a grandfather, a grandmother, two fathers, two mothers, four children, three grandchildren, one brother, two sisters, two sons, two daughters, one daughter-in-law, and one mother-in-law need to sit at a table.

There are only seven chairs available at the place. How many more chairs do they have to borrow so that everyone can sit down together for the suppers if everybody requires a separate chair?

How many sides does a circle have?

How can you write nineteen in a manner that if we take out one, it becomes twenty?