How many times in a given day, minutes and hour clock comes in a straight line ?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

What can you hold in your right hand, but never in your left hand?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

When can we add 2 to 11 and get 1 as the correct answer?

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?

What has many teeth, but cannot bite?