Which alphabet letter is a question?

Which is the correct shadow of the bird?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

What is black when you buy it, red when you use it, and gray when you throw it away?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

Count the Triangle in the figure given below:

If a wheel has 54 spokes, how many spaces are there between the spokes?

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?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?