In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

Consider this about a word: The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

Can you solve the below tricky visual equation?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

If eleven plus two equals one, what does nine plus five equal?

Can you make a six-letter word using the letters N, A and B ?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

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?