If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

How many letters are in the alphabet?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

What word begins and ends with an E, but has only one letter?

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT