Puzzles
Action Riddles
These riddles are given by example. The solver has succeeded when they discover the trick and can give examples as well as the riddler.
Conventional Riddles
This is a collection of riddles that don't have a special theme or mode.
Low Grade Riddles
These riddles give riddles everywhere a bad name. When someone offers you a riddle, and then gives you these, you are disappointed.
Fun Problems in Number Theory
Number Theory contains a rich set of interesting problems, some suitable for you or I, some entirely unsolvable. This is a selection of my favorites.
Situation Riddles
With these riddles, the riddler gives an initial prompt, and the solver(s) ask yes-or-no questions to decuce the full circumstances of the situation.
What-Am-I Riddles
These riddles list a set of properties, and the solver has to identify the (hopefully unique) thing that posesses them.