There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

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.

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

What word begins and ends with an E, but has only one letter?

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

What country can make you shiver?

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

Identify The phrase in the picture.

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

Can you count the number of squares in the given picture?