I’m tall when I’m young, and I’m short when I’m old. What am I?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Count the Triangle in the figure given below:

On one occasion, A Boy collects 71 rupees in form of 20 paise and 25 paise. He collects a total of 324 coins.

Can you tell me how many 20-paisa and 25-paisa he got?

How many letters are in the alphabet?

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?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

What two things can you never eat for breakfast?