# calculation-puzzle's questions - Chinese 1answer

566 calculation-puzzle questions.

### 6 Solve this riddle

4 answers, 382 views mathematics calculation-puzzle
Find out the correct number to replace the question mark.

### 2 A Maximising Puzzle Gift for my Girlfriend and I's 28th month Anniversary

6 answers, 204 views mathematics calculation-puzzle

### 3 Your age and my age [closed]

2 answers, 491 views mathematics calculation-puzzle time
This is not a very difficult problem, but it seems that it hasn't been asked here. It's one of my favorites, so here we go: I am twice as old as you were when I was as old as you are. When you ...

### 3 systematic number removal [duplicate]

The whole, natural numbers 1 through 50 are written on a board. The following operation is performed 49 times: select any two of the numbers on the board and write the absolute value of their ...

### -1 Fuzzy's Fizzy Dilemma

1 answers, 152 views calculation-puzzle word-problem physics
Fuzzy the Fuzzball's friends was going to the Fuzzball Festival, and of course he went along. While there, he saw the most curious display. The booth was displaying brand new types of Fuzz. There was ...