Logic Riddles with Answers

Is it legal in New York for a man to marry his widow's sister ?

Is there a number which, when written as a word has same number of letters as its numerical value?

If half of five was two what would a third of ten be?

What would you father's only sister's sister-in-law be to you?

What comes once in a minute, twice in a moment, but never in a thousand years?

What is the significance of the following: The year is 1978, thirty-four minutes past noon on May 6th.

A man is writing a letter. The power goes off and he dies. Why?

You see a boat filled with people. You look again, but this time you don't see a single person on the boat. Why? Hint: The boat h...

First tell me who lives in disguise, who deals in secrets and tells naught but lies. Next, give me the sound often heard during t...

There were two men walking around on a deserted island with no food or water. One of the men got so hungry that he killed and ate...

A doctor gives you three pills and tells you to take one every half an hour. How long will the pills last?

A man is in a maze, suddenly the power shuts off. He walks on and it gets colder and colder. He comes to a set of doors numbered 1...

There are nine metal dice. 1 die is slightly lighter than the other 8. If you had a balance scale and only two attempts, how could...

Walking home one day, you take a short cut along the train tracks. The tracks cross a narrow bridge over a deep gorge. At the poin...

There are two doors and there is one guard for each door. One door leads to life and the other leads to death. You have only one q...

What US state is surrounded by the most water?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at t...

Finished files are the result of years of scientific study combined with the experience of years. How many F's are in the previous...

Jenna wrote all the numbers from 300 to 400 on a piece of paper. How many times did she write the digit 3?

A woman shoots her husband, then holds him under water for five minutes. Finally, she hangs him. Five minutes later they enjoy a w...

You are standing in front of a room with one light bulb inside of it. You cannot see if it is on or off. Outside the room there ar...

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 t...

There is a man lying dead in his office. He is all alone and the doors and windows are locked from the inside. There are no marks...

A man went on a trip with a fox, a goose and a sack of corn. He came upon a stream which he had to cross and found a tiny boat to...