I am always collecting riddle books---garage sales, dollar stores, the library! I look for riddles in themes! Sometimes, I do holiday thematic riddles but I always do math riddles. One board can work all year just by using velcro each month to change the questions. Mine are all color-coded to make it easier to keep organized.
The day I remember was when he went to the library and checked out all the riddle books to the surprise of our librarian. Then he asked for post-it notes and started to flag the books. I asked him what was he doing and he responded that he was finding next month's riddles. Ah, reading all the while! Children love riddles, the sillier the better! Teach on my friends!
