What does this rebus riddle means ?

If,

20 % 5 = 24

21 % 7 = 33

42 % 6 = 67

Then;

66 % 6 = ?

What can you deduce from the following BrainBat?

CRY
LMKI

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Find the 8 in the below-given Image.

Can you move 2 matchsticks to form four equal sized squares.