What is the fastest way to double your money?

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?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

What is the below Rebus indicate?

What does this rebus mean?

O
N
C
E
TIME

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

Can you find the number?

Imagine you are in a room with no windows or doors. How will you get out?

In a box, there is a jumble of 7 red balls, 6 blue balls, 5 green balls, and 4 yellow balls. What is the minimum number of balls, will you have to pick up so that you have at least 4 balls of the same colour?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Five teams were competing in cricket where they faced each other exactly once. After the tournament, the following is the point table.

DareDevils 6
SuperKings 5
Royals 4
Sunrisers 2
Riders ?

How many points did Riders end up with?