How many sides does a circle have?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

Replace the question mark with the correct number.

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

Count the number of times the letter "F" appears in the following paragraph:

FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.

What do you call a fish without an eye?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

In the attached figure, you can see a chessboard and two rooks placed on the chess board. What you have to find is the number of squares that do not contain the rooks. How many are there?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

A deaf and mute man goes to the train station. Tickets for the train are 50 cents each. The man goes to the ticket booth and hands the man inside just a dollar. The man in the booth hands him two tickets.

How did the man in the booth know to give him two tickets without even looking at him?