On the following pages you'll find our collection of difficult riddles.
There are different types, some are logic, some are math, some are thinking and others are just fun to try to figure out.

1. A woman goes into a hardware store to buy something for her house. When asked the price, the clerk replies, "the
price of one is twelve cents, the price of forty-four is twenty-four cents, and the price a hundred and forty-four is thirty-six cents. What does the
woman want to buy?

2. Ten people, all wearing hats, were walking along a street when a sudden wind blew their hats off. A helpful boy retrieved them and,
without asking which hat belonged to which person, handed each person a hat. What is the probability that exactly 9 of the people received their own hats?

The probability is zero. If nine people got their correct hat then the tenth person also got the right hat. There is no combination in which exactly nine people can get the right hat. The probability of all 10 getting the right hat, however, is only 1/10! = 1 in 3,628,800. That is also the probability of the first nine people getting the right hat.

3. Voices without mouths, throats or lungs; they know no language, but answers all tongues.

4. Which day is two days before the day after the day three days after the day before Tuesday?

5. Use math symbols to replace the question marks to make the following a valid equation:

12 ? 2 ? 7 ? 4 = 9

6. Each son in the Smith family has just as many brothers as sisters, but each daughter has twice as many brothers as sisters. How many boys
and girls are there in the family?

There are 4 boys and 3 girls in the family: each boy has 3 brothers and 3 sisters, but each girl has 4 brothers and 2 sisters.

7. President Obama is listed as our 44th president, but only 43 men have held the office. Why?

Grover Cleveland held office during 2 nonconsecutive terms.

8. A farmer was going to town with a fox, a goose and a sack of corn. He came to a stream that he had to cross. There was a tiny
boat; he could only take one thing across at a time. However, if he left the fox alone with the goose, the fox would eat the
goose, and if he left the goose alone with the corn, the goose would eat the corn. How does he get them all safely across the stream?

He takes the goose across and returns. Then he takes the fox across, but he brings the goose back with him. Then he takes the corn across, but leaves the goose behind. Finally, he comes back alone to get the goose..

9. There is a wine barrel with no lid and some wine in it. "This barrel of wine is more than half full," says
Larry. "No it's not, says Joe. It's less than half full." Without any measuring implements and without removing any wine from the barrel, how can they determine who is correct?

Tilt the barrel until the wine touches the lip of the barrel. If the bottom of the barrel is visible then it is less than half full. If the barrel bottom is still completely covered by the wine, then it is more than half full..

10. Paul boasted to his friends that he had done 20 percent better on his math test than Pete did. Pete got an 80 on his test;
so Paul's friends all believed that Paul got a 100. Were Paul's friends correct?

No, Paul's score was a 96. 20 percent of 80 is 16; so 80 + 16 + 96. Some confuse the 20 percent as being 20 points..