Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

Sherlock breaks into a crime scene. The victim is the owner who is slumped dead on a chair and have a bullet hole in his head. A gun lies on the floor and a cassette recorder is found on the table. On pressing the play button, Sherlock hears the message 'I have committed sins in my life and now I offer my soul to the great Lord' and followed a gunshot Sherlock smiles and informed the police that's its a murder.

Why did he think so?

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

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

Why 1729 is a magic number? Answer Logically.

When is the top of a mountain similar to a savings account?

Spot 5 differences in two Christmas tree below:

Two Twins Jack and Jill were standing back to back and suddenly they started running in opposite direction for 4 kilometres and then turn to left and run for another 3 kilometres.

what is the distance between the Baggio twins when they stop ?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?