I have branches, but no fruit, trunk or leaves. What am I?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

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?

What is the four-digit number in which the first digit is one-third the second, the third is the sum of the first two, and the last is three times the second?

What does below rebus means ?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Can you find a rabbit in the given picture?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

Find the number of squares in the below-given picture.