If two's company, and three's a crowd, then whats four and five ?

In the picture given below, can you find out which digit will take place of the question mark?

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

There is a place where if I stand up straight, I will still be considered sideways.

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

What goes through cities and fields, but never moves?

Find the next number in the series below

21 32 54 87 131 ?

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?

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?