What is next number in the pattern below:

131 517 192 123 ?

Spot the cat in the picture below

You can see it everyday, But cannot touch it at will. What is it?

Find the next number in the series below

21 32 54 87 131 ?

Forwards I am heavy, backward I am not. What am I?

What is the next number in this matchsticks series riddle?

A father's child, a mother's child, yet no one's son.

Who am I?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

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?