General Terms:
* Wordplay riddle: This is the most straightforward description.
* Pun riddle: This emphasizes the use of puns, which are a common element in wordplay riddles.
* Double entendre riddle: This specifically refers to riddles that use words with multiple meanings.
* Linguistic riddle: This highlights the focus on language and its nuances.
More Specific Terms:
* Homophone riddle: This type of riddle uses words that sound alike but have different meanings.
* Homonym riddle: This type of riddle uses words that have the same spelling but different meanings.
* Heteronym riddle: This type of riddle uses words that are spelled the same but pronounced differently and have different meanings.
Ultimately, the best term to use depends on the specific type of wordplay employed in the riddle.