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.

Find the next number in the sequence

1, 2, 6, 21, 88, __?

why number 8549176320 is one of a kind?

Find the hidden tiger in the given optical illusion ?

What does this simple rebus mean?

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

Distances from you to certain cities are written below.

BERLIN 200 miles

PARIS 300 miles

ROME 400 milesAMSTERDAM 300 miles

CARDIFF ??? miles

How far should it be to Cardiff ?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?