Find out the missing number in the picture attached:

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

How many times can you subtract the number two from the number fifty?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

A man is found dead in his bathroom naked with blood scattered all around him. The bathroom was locked from the inside and there is no trace of any struggle. There is nothing in the bathroom except his pant with the belt still around and his shirt. Also, the medic team can't find any incision in his body that may have been the reason behind so much blood loss.

The Police department is clueless regarding this murder mystery.
Can you?

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

What does Alexander the Great and Winnie the Pooh have in common?

Which word does the below Plexor means ?