True or False?
"This sentence is false." Is the sentence true or false?
Hint: If the sentence is true, it is telling the truth that it is false. If it is false, it is lying that it is false so it is really telling the truth.
Solution: Unfortunately, there isn't really a good solution. Whether the sentence is true or false, a paradox is created. A similar question is, "If a man tries to fail and succeeds, which did he do?"
Games
Pac-Man Made Easy
Because being chased by ghosts is way too hard.
LOST Swan Timer
Every 108 minutes, the button must be pushed.
Do Not Press
Whatever you do, you must not press the red button.
Reset the Sign
The longer you wait to reset the sign to zero, the higher your score. But don't wait too long, or someone else might reset it!
Puzzles
Toothpick Equality
Add a single toothpick to form a mathematically true equality.
Toothpick Squares
Move two toothpicks to form exactly four squares instead of five.
Connect the Colors
Connect the colors without crossing lines.
Doorways
Travel through all the doorways exactly once.