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?

If an electric train is travelling south, then which way is the smoke going?

What word is represented by this rebus?

When is the top of a mountain similar to a savings account?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

During a secret mission, an agent gave the following code to the higher authorities
AIM DUE OAT TIE MOD

However, the information is in one word only and the rest are fake. To assist the authorities in understanding better, he also sent them a clue, If I tell you any one character of the code, you can easily find out the number of vowels in the codeword.

Can you find out the code word?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

Find the next number in the sequence

5 12 24 36 ?