Logic Puzzles

Puzzles that can only be solved by thinking logically.

Careers

Three working women have different careers. If only one of statements 1, 2 and 3 are true, can you tell whether or not Mary is a nurse? 1. This statement is only true if statement 5 is false. 2. This statement is true if statements 4 or 5, or both 4 and 5 are true. 3. This statement is false only if both statements 6 and 1 are true. 4. Mary is a nurse 5. Karen is an artist. 6. Sarah is a photographer.

Answer
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Average: 6 (1 vote)
Kind of riddle

What is your age?

My age today is three times what it will be three years from now minus three times what my age was three years ago. How old am I?

Answer
Score visitors
Average: 6 (1 vote)
Kind of riddle

The Wise Son

An old man wanted to leave all of his money to one of his three sons, but he didn't know which one he should give it to. He gave each of them a few coins and told them to buy something that would be able to fill their living room. The first man bought straw, but there was not enough to fill the room. The second bought some sticks, but they still did not fill the room. The third man bought two things that filled the room, so he obtained his father's fortune. What were the two things that the man bought?

Answer
Score visitors
Average: 6 (1 vote)

A river crossing problem

This famous river crossing problem is known as the “bridge and torch” puzzle. Four people are crossing a bridge at night, so they all need a torch—but they just have one that only lasts 15 minutes. Alice can cross in one minute, Ben in two minutes, Cindy in five minutes and Don in eight minutes. No more than two people can cross at a time; and when two cross, they have to go at the slower person’s pace. How do they get across in 15 minutes?

Answer
Score visitors
Average: 7 (2 votes)

A bet

John bets Tom $100 that he can predict the score of the football game before it starts. Tom agrees, but loses the bet.

Why did Tom lose the bet?

Answer
Score visitors
Average: 5 (1 vote)
Kind of riddle

Train to Florida

If a train was on its way to Florida and it tipped over, where would they bury the survivors?

Answer
Score visitors
Average: 5 (1 vote)
Kind of riddle

A fly in the tea

A woman was horrified to find a fly in her tea. The waiter took her cup and went into the kitchen and returned with a fresh cup of tea. She shouted, "You brought me the same tea!" How did she know?

Answer
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Score visitors
Average: 5 (1 vote)
Kind of riddle

An elevator is on the ground floor

An elevator is on the ground floor. There are four people in the elevator including me. When the lift reaches the first floor, one person gets out and three people get in. The lift goes up to the second floor, 2 people get out, 6 people get in. It then goes up to the next floor up, no-one gets out but 12 people get in. Halfway up to the next floor up the elevator cable snaps, it crashes to the floor. Everyone else dies in the elevator except me. How did I survive?

Answer
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Score visitors
Average: 4.7 (6 votes)
Kind of riddle

A man describes his daughters

A man describes his daughters, saying, “They are all blonde, but two; all brunette but two; and all redheaded but two.” How many daughters does he have?

Answer
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Score visitors
Average: 4.8 (4 votes)
Kind of riddle