Puzzles: Collection III

KenKen

This puzzle is like Sudoku as you have to fill each row and column with the numbers 1 to 4, but each outlined area also has to fulfill the arithmetic requirement. For example, the terms in a region saying “7+” would have to add up to 7.

Lateral Thinking Problems

These are logic problems that require you to think in a different way (laterally) and occasionally a bit of math. Credits to Paul Sloane for compiling many puzzles, some of which are edited and featured here. Scroll down to the bottom of this page to find the answers.

1. Two people were eating at a restaurant together and ordered the same poisoned drink. One person drank six cups while the other only drank one. However, the person who only drank one died while the other survived. How did this happen?

2. In a specific postal service, items sent were only allowed to be under or equal to 1 meter long. One person wanted to send a rod that was 1.4 meters long. They did not bend or break it in any way, but they still managed to send it. How?

3. A completely ordinary person walked through a crowded city. Everyone around them had normal vision, but the person was completely unseen. How did this happen?

4: Someone is sitting in a coffee shop, and they complain that their coffee has a fly in it. The waiter apologizes and brings a new cup of coffee. The customer then says that it is the original with the fly removed. This was correct, but how did they know?

5: A person is dead in an empty field with no civilization for miles around. Next to them was a small package. What was in the package and how did they die?

6: You have 9 weights, and they’re all identical except one that’s either heavier or lighter. You have a balance scale and can use it only twice. How do you find the odd weight?

7: Five glasses are placed in a row. The first three are filled with water, and the last two with poison. By only moving one glass, make it so that no two glasses with water are next to each other.

Answers below: