Puzzle 101
Can you make this equation correct by moving exactly one matchstick?
Note: this puzzle is not interactive, and the matchsticks cannot be moved. The matchstick layouts for each digit are:
Puzzle 102
Jam Making Contestall logic puzzles
At the recent interdepartmental jam making contest, four lucky candidates took part to make the juiciest strawberry jam.
As it happens, the person who came last was the oldest.
Glen was three years older than the person who came second.
Drew was neither the oldest nor the youngest.
Emery finished ahead of the 27-year-old, but didn't win.
Alex was also unlucky this time, and didn't win either.
The ages of the contestants were 24, 27, 30 and 32.
Can you work out who finished where, and how old they were?
Puzzle 103
Which of the shapes is identical to the first one?
There might be more than one.
Puzzle Copyright © Robert A. Hartmann
Puzzle 104
How many squares are in the drawing below?
Note: this puzzle is not interactive, and the squares cannot be clicked.
