Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

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?

I have 50 feet long of cloth, I need to create 50 handkerchiefs each size of 1 foot. I take one minute to cut a 1-foot handkerchief. So how long will it take to cut 50 handkerchiefs?

I am white when I am dirty, and black when I am clean. What am I?

Why Aeroplane windows are round?

81 x 9 = 801. What must you do to make the this equation true?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?