Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Why is 6 afraid of 7?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

What time is it when an elephant sits on a fence?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

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?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Outside a massage parlour, there is a board that reads
"I only massage those who do not massage themselves."

Reading the above statement, does the masseur massage himself?