Weekly Brain Teasers – Week #1

13. Kerry and Terry are twins (in every sense of the word, i.e. they shared the same womb).
One day Kerry celebrated her birthday. Two days later her OLDER twin brother, Terry, celebrated his birthday. How can that happen?

 

14. You are standing at a pool and have a 3-gallon jug and a 5-gallon jug… put EXACTLY 4 gallons of water into one of the jugs.
You have no other means of measuring besides the two jugs. You must be exact.

Bet You Can't Guess The Answers To All Of These Brain Teasers

15. A dad and his two sons are stranded on an island. Eventually they discover a row boat that they can use to get to the mainland.
However…
The boat has a weight limit of 200 lbs.
The dad alone weights 200 lbs, his sons weigh 100 lbs each.

How do all 3 get to the mainland?

Bet You Can't Guess The Answers To All Of These Brain Teasers

 

9. The poison was in the middle of ice cubes.

10. The key word is “all.” The first and second person both indicate that they don’t know, as in they cannot say if the next person will have a drink, but if they didn’t want a drink, they would know that “all” of them don’t want a drink.

11. Nothing.

12. Choices.