Puzzle 173
A woman had three old coins: a silver dollar, a quarter, and a dime. Each coin was a little battered and had a piece missing. She found that exactly the same fraction had broken away from each coin.
What fraction of each was missing if the value of the remaining bits of coins was now exactly one dollar in total?
For this puzzle it can be assumed that 1/2 a coin is worth 1/2 of its value.
Based on a puzzle by Henry Ernest Dudeney.
Puzzle 174
Painter Pete did such a good job of the housing estate, he was asked to paint the room numbers on all of the doors of the fourth floor of the local hotel.
Pete painted all of the numbers from 400 to 499.
How many times did he paint the number 4?
Puzzle 175
How many squares, of any size, can be found on a standard chessboard?
How many rectangles, of any size, can be found on a standard chessboard?
Remember when counting the rectangles, that squares are also rectangles.
Puzzle 176
Place letters into the grid such that every row, column, and 2 x 2 block has letters (in any order) that form a common word. Each letter is only used once, and no letter is repeated in the rows / cols / blocks.
Letters allowed: T U R K E Y
| O | C | S | |
| L | D | ||
| A | K | B | |
| S | I |
Note: this puzzle is not interactive, and the squares cannot be clicked.
Puzzle Copyright © Alan Stillson and Frank Longo