Two trains start at the same time, one from Bangalore to Mysore and the other from Mysore to Bangalore. if they arrive at their destinations one hour and four hours respectively after passing one another, how much faster is one train running than the other?

Find the last number in the series below:

voN luJ yaM raM ---

No matter how little or how much you use me, you change me every month. What am I?

I am quite hot but become too cold if you remove the first two letters. What am I?

what does the below rebus means?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Count the number of triangles in the picture below:

Name a key which is hardest to turn.

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?