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?

Can you find the mistake in the below statement?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

What does below chemistry rebus means?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

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

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

How many times can you subtract the number 5 from 25?

What word begins and ends with an E, but has only one letter?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?