Puzzle 1
Many years ago, a cruise liner sank in the middle of the ocean.
The castaways luckily landed on a remote desert island.
There was enough food for the 220 people to last three weeks.
Six days later a rescue ship appeared, unluckily this ship also sank, leaving an additional 55 people stranded on the island to now share the original rationed food.
The food obviously had to be re-rationed, but everyone was now on one-half of the original ration, so how many days in total would the food last for, from the day of the original sinking?
Puzzle 2
How many days before 17th August is it, if …
… 50 days before then, it was four times as many days since March 30th?
Puzzle 3
Elevator Mishapall logic puzzles
Six people were in a room together, when suddenly the lights went out. When the lights came back on, Fred Albert's wallet was missing!
Detectives have investigated, they have questioned the suspects, the witnesses, and people who know the suspects. They have collected physical evidence (hair samples, fibre samples, etc.) from the crime scene. They have collected these clues, but have not been able to solve the crime.
They have now asked for your help. Examine the clues, and see if you can solve the crime.
The suspect who owns a purple car was wearing tan shoes.
The suspect who weighs 180 pounds owns a green car.
The suspect who owns a black car was wearing blue shoes.
The suspect who weighs 150 pounds was wearing tan shoes.
Brian Martin owns a green car.
Marty Jones was carrying a purple umbrella.
John Fox has red hair.
Larry Smith weighs 210 pounds.
The suspect who weighs 190 pounds was wearing blue shoes.
The suspect who was carrying a red umbrella is not the one who was wearing black shoes.
The thief owns a black car.
The suspect who owns a white car is not the one who weighs 170 pounds.
Bill Edison was wearing brown shoes.
The suspect who weighs 190 pounds is not the one who has red hair.
No two suspects have the same weight, colour shoes, colour umbrella, colour car, or hair colour.
Puzzle Copyright © David Leithauser
Puzzle 4
Sam takes 20 days to build a wall.
Taylor and Kelly each take 10 days to build a wall.
How long will it take the three of them to build a wall if they work together?