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 does below chemistry rebus means?

Why is it very easy to weigh a fish?

A tourist visits a small town for his research. While in the town, he decides to get a haircut. Since the town is quite small, there are only two barbers in the town � one on the North Street and one on the South Street. The barbershop on the North Street is a mess and the barber has a weird and pathetic haircut. While the barbershop at the South Street is pretty tidy and the barber as well has an impressive haircut.

Which barbershop will the tourist visit for his haircut and why?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

What does this simple rebus mean?

A gardener planted the Lemon trees in a mathematical ordered way (i.e. he planted a tree in rows).
He created a total of 19 rows of trees.

Note: There should be more than 2 trees to count as a row.

What is the minimum number of trees required by the gardener to have 19 rows of trees?

What number do you get when you multiply all of the numbers on a telephone's number pad?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

I am an odd number. Take away a letter and I become even. What number am I?