Here is another, just in case:
If you drop a yellow hat in the Red Sea, what does it become?
Kids' riddles sometimes drive me nuts. How about you. Here is one asked at Sunday school: What vehicle is spelled the same backwards and forwards?
TBH these are pretty basic kids riddles too. I like them, lets me use my brain without giving me a headache.
1) Racecar
2) It becomes wet.
