riddlepen

noun
UK /ˈrɪd.əl.pɛn/
US /ˈrɪd.əl.pɛn/

A riddlepen is a special pen that writes tricky questions for you to solve.

Maya used her riddlepen to write a puzzle for her friend.


OTHER MEANINGS

2. A pen used to write down riddles and answers.

He kept a riddlepen in his pocket for jotting down new riddles.

3. A playful name for a pen that hides secret messages.

The riddlepen wrote in invisible ink that only showed under a lamp.

4. A small enclosure or pen where riddles are kept or displayed.

The classroom had a riddlepen full of question cards for free time.