I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

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

Why 1729 is a magic number? Answer Logically.

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

If a wheel has 54 spokes, how many spaces are there between the spokes?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.