The answer to this riddle is preadolescent.
Dis you get it? Just replace the + sign with ad (as in addition) and swap the - sign for les (as in "less than” which means subtraction).
Rebus Puzzles via kwout
This kind of brainteaser is rebus puzzle that makes use of pictures, symbols, and letters to represent a word or words.
These are really great for kids or adults because you have to use both sides of your brain. They are like mental exercises for a healthy mind.
See a few examples on the side.
TIP! The single most important thing to remember when attempting to solve hard riddles is that they are meant to trick you.
Learn more tips on how to answer hard and tricky riddles, shared by Howtodothings.com.