Logic Puzzles

Puzzles that can only be solved by thinking logically.

Baffling Statements

Which of the following statements are true, and which are false? 1. Only one of the statements is false 2. Exactly two of the statements are false. 3. Only three of the statements are false. 4. Exactly four of the statements are false. 5. All five of these statements are false.

Answer
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Average: 8 (1 vote)
Kind of riddle

Lights Off

Joe and Sally were sitting in their family room one night. While Joe was watching T.V, his wife Sally was reading. All of a sudden the power went out and Joe decided to go to bed, but Sally kept on reading. With no use of artificial light, Sally kept on reading. How?

Answer
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Average: 8 (1 vote)

Wine barrel

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

Answer
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Average: 8 (1 vote)
Kind of riddle

Subtraction

How many times can you subtract the number 5 from 25?

Answer
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Average: 8 (1 vote)
Kind of riddle

Four people

Four people are sitting around a campfire after a long day of recreation, when one man comments: "Do you realize that around this campfire, the four of us include a mother, father, brother, sister, son, daughter, niece, nephew, aunt, uncle and a couple cousins"?. If everyone is related by blood (with no unusual marriages) how is this possible?

Answer
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Average: 7 (1 vote)
Kind of riddle

Killer Wife, Or Not?

A woman shoots her husband. Then she holds him underwater for over 5 minutes. Finally, she hangs him. But 5 minutes later they both go out together and enjoy a wonderful dinner together. How can this be?

Answer
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Average: 7 (1 vote)
Kind of riddle

My Daughters

I have ten or more daughters. I have less than ten daughters. I have at least one daughter. If only one of these statements is true, how many daughters do I have?

Answer
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Average: 6 (1 vote)
Kind of riddle

Socks

You have 14 brown socks, 14 blue socks and 14 black socks in your sock drawer. How many socks must you remove (without looking to be sure) to have a matched pair?

Answer
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Average: 6 (1 vote)
Kind of riddle

An extended trip

Julie is going on an extended trip for three weeks. She lives in a remote area where there are frequent electrical power outages which can last up to three or four days. Julie has quite a bit of food in her freezer which would go bad if it thawed and then re-froze. She does have digital clock and a VCR which would flash 12:00 if the power went out. Unfortunately the clock and VCR flash even if the power only goes out for a few seconds. What can Julie do so that when she returns home she will be able to determine whether the power was out long enough to thaw her food? Asking a neighbor whether the power was out, isn't a reliable option because the nearest house is half a mile away, and one house may have power, while another house may have no power. She won?t be able to have a neighbor check on her house every day, and has no one to house sit.

Answer
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Average: 6 (1 vote)
Kind of riddle

Sell it twice

A man decides to buy a nice horse. He pays $600 for it, and he is very content with this strong animal. After a year, the value of the horse has increased to $700 and he decides to sell the horse. But already a few days later he regrets his decision to sell the beautiful horse, and he buys it again. Unfortunately he has to pay $800 to get it back, so he loses $100. After another year of owning the horse, he finally decides to sell the horse for $900. What is the overall profit the man makes?

Answer
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Average: 6 (1 vote)
Kind of riddle