Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

What has one letter and starts with an E?

What word does this rebus represent?

meta meta
meta meta

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

There is a box full of marbles,
all but two are blue,
all but two are green,
and all but two are red.

How many marbles are in the box?

Using eight eights and addition only, can you make 1000?

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

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?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?