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?

Find the next number in the series below

21 32 54 87 131 ?

You can hear me, but you can't touch or see me.

What am I?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Why are televisions attracted to people?

Can you find the six hidden animals in the picture below?

Can you find a rabbit in the given picture?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Can you replace the question mark with the correct number in the below table sequence?