What goes up but never comes down?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

Can you tell a 3D object that has just two surfaces?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

What seven-letter word has hundreds of letters in it?

Find the last number in the series below:

voN luJ yaM raM ---

When it's bad luck to meet a black cat?

Find the next number in the series below.

6 18 270 72090 ?

A woman who works in a sweet shop has a measurement of 32-26-36, is 5"4" tall, and wears size "6" shoes. What do you think she weighs?

Solve the rebus riddle in the picture below.