A crime was committed at baker street. Ibrahim Dakota who was shot in the stomach was the main suspect. Sherlock questioned the suspect. The conversation started as:
Sherlock: What's your story, Ibrahim?
Ibrahim: I was walking around baker street and suddenly a man from the back shot me. I ran as fast as I could to save my life".
Sherlock: That is enough (and ask the police to arrest him).

Why does Sherlock think he is the murderer?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

Using Only Five 5's and any mathematical operator make sum as 37

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

If a wheel has 54 spokes, how many spaces are there between the spokes?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

We have shown you a regular water barrel as below. Without using any measuring device can you check if the barrel is more than half-filled or less than half-filled?