When 99 is considered higher than 100?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

John was drowned by he was not wet. How?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

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 Rs.50 and I spend it in the way as below.