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.

If,
9 * 8 * 7 = 65
8 * 7 * 6 = 50
7 * 6 * 5 = 37

Find
6 * 5 * 4 = ?

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

What Adam and Eve do not have but the rest of the people have?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

The cream is heavier than Milk. True or False?

What's a single-digit number with no value?