Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

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.

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

what does this below rebus represent identXQQQQQME

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

Can you spot the hidden girl in the picture below?

Why is Saturday stronger than Monday?

In a basket of apples,
when counted in twos, there was one extra
when counted in threes, there were two extra when counted in fours, there were three extra
when counted in fives, there were four extra
when counted in sixes, there was five extra.

However, if the apples were counted in sevens, no extra apple was left. Can you calculate the minimum number of apples that were present in the basket?