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.

A bank customer had $100 in his account. He then made 6 withdrawals. He kept a record of these withdrawals, and the balance remaining in the account, as follows:

Withdrawals Balance left
$50 $50
$25 $25
$10 $15
$8 $7
$5 $2
$2 $0
----- -----
$100 $99

Why are the Totals not tallying?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

The pound is not a finish.

We are sharing a few instructions below, which you have to use in any suitable order to modify the above sentence such that the end sentence is a scientific fact.

- Eliminate a letter and supplement another in its place.
- Take away one word.
- Remove one letter from one word.
- Get rid of two letters from one word.
- Swap a word with its antonym.

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?