Puzzle 17
In my money box, I found $36.80 made up of equal numbers of quarters, dimes, and nickels.
How many of each coin did I find?
Puzzle 18
I was travelling from Chesterton to Newcastle recently when I came across a sign which had fallen off its post at the crossroads.
It was marked to Newcastle, Chesterton, Knutton and Silverdale.
Unfortunately I didn't know which road to take to Newcastle and had hoped the sign would help.
Luckily I had a brainwave which helped me put the sign back pointing correctly to Newcastle.
What was my idea?
Puzzle 19
Art Theftall logic puzzles
After a local art theft, six suspects were interviewed.
Below is a summary of their statements.
Police knew that exactly four of them told one lie each, and all the other statements were true.
From this information, can you tell who committed the crime?
Alex said:
It wasn't Billie
It wasn't Drew
It wasn't Emery
Billie said:
It wasn't Alex
It wasn't Chris
It wasn't Emery
Chris said:
It wasn't Billie
It wasn't Frankie
It wasn't Emery
Drew said:
It wasn't Alex
It wasn't Frankie
It wasn't Chris
Emery said:
It wasn't Chris
It wasn't Drew
It wasn't Frankie
Frankie said:
It wasn't Chris
It wasn't Drew
It wasn't Alex
Puzzle 20
Start in the bottom left corner and move either up or right, one square at a time, using the numbers and the mathematical signs along the way. What is the largest total you can make?
| + | 2 | − | 4 | + | 2 |
| 2 | + | 2 | − | 2 | + |
| − | 1 | + | 3 | − | 3 |
| 2 | − | 3 | + | 1 | − |
| + | 1 | − | 3 | + | 2 |
| 3 | + | 3 | − | 2 | + |
Note: this puzzle is not interactive, and the numbers cannot be clicked.