How many times in a given day, minutes and hour clock comes in a straight line ?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

Why are all black people so quick ?

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?

I am a mother. However, I never give birth.

I am a father. However, I never nurse my children.

Wandering is not possible for me, but standing still happens occurs rarely.

Who am I?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

What number should come in place of the question mark below?

Make a sentence consisting of three words that have the whole alphabet.