Math Brain Teasers Page 3
Birthday Cake
You must cut a birthday cake into exactly eight pieces, but you're only allowed to make three straight cuts, and you can't move pieces of the cake as you cut. How can you do it?
Elevator Crash
Suppose you are on an elevator on the 16th floor of a building, when the cable breaks. As you plummet toward the ground, you recall that you once heard that by jumping up FAST at the instant of impact, you can escape death. You also recall that the floors are twelve feet apart and that the speed of a falling object is 32 feet per second squared. When should you jump?
Dog Run
A dog can run fifty miles in a day. How far could he run into a 120 square mile forest in two days?
Sock Drawer
Your sock drawer contains ten pairs of white socks and ten pairs of black socks. If you're only allowed to take one sock from the drawer at a time, what's the minimum number of socks you need to take before you're guaranteed to have a pair?
Not Heavy - Easy
Forward it's heavy, backward I it's not. What word is it??
Lots of Letters - Easy
What two words have the most letters in it?
Outs - Easy
How many outs in an inning?
Birthdays - Easy
How many birthdays does the average man have?
Lights Out - Easy
If you had one match and entered a room in which there were a kerosene lamp, an oil burner, and a wood burning stove, which would you light first?
Three Pills - Easy
If a doctor gave you three pills and told you to take one every half-hour, how long would they last you?
Old Coin - Easy
An archeologist claims he found some gold coins dated '46 BC' Do you believe him?
East or West of the Mississipi - Easy
Is it legal for a man living west of the Mississippi River to be buried east of the Mississippi River?
Math - Easy
Divide 30 by 1/2 and add 10. What is the answer?
Animals on the Ark - Easy
How many animals of each gender did Moses take aboard the ark?
Weighs - Easy
A clerk in a butcher's shop is five foot ten. What does he weigh?
British Fouth of July - Easy
Do they have a 4th of July in England?
Marriage Law - Easy
In North Carolina, is it legal for a man to marry his widow's sister?
Masked Men - Easy
A man leaves home and takes three left turns. Upon arriving back home he comes across two men wearing masks. Who are these men?
Pulley System - Easy
A strong man at the circus can bench press 1200 pounds. How much can he lift with a pulley and a 25 foot rope when the rope weighs two pounds, the pulley is attached to the ceiling, the ceiling is 10 feet from the floor, and the man is standing on the floor?
Numbers - Easy
Take 1 from 19 and leave 20.
Off the Chair - Easy
Jack gave John the following challenge: "If you sit down in that chair, I bet I can make you get out of it before I run around the chair three times," he said "Awe, that's not fair," John said. "You'll just prick me with a pin or something." "Nope," Jack said. "I won't touch you, either directly or with any object. If you get out of the chair, it'll be by your own choice." John thought, accepted the challenge, and lo and behold, Jack won the bet. How did he do it?
Vinyl - Easy
How many grooves are there on an LP record?
Spelling - Easy
What word is always spelled incorrectly?
Sunset, Sunrise - Easy
On what day(s) of the year does the sun rise and set at the same time of day?
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