can you give me a puzzle that i can solve ??

Question: can you give me a puzzle that i can solve ??
- Keywords:
  puzzle,
  solve
Asked by 644xygg26 to Gavin, Karen, Mark, Michel, Roisin on 10 Nov 2016.
- Mark Kennedy answered on 10 Nov 2016:
  
  Here’s a very cool website: https://www.zooniverse.org/projects?status=live
  
  It will show you a list of projects that you can help out with, from discovering new planets (https://www.planethunters.org/) to helping count penguins (https://www.penguinwatch.org/?_ga=1.16969785.1619191655.1474470296). If you help with these projects, you’re helping to solve puzzles scientists are currently working on.
- Michel Destrade answered on 10 Nov 2016:
  
  What’s the missing number: 9, 16, –, 36, 49, 64? Let me know if it’s too hard, easy, or just right!
- Roisin Jones answered on 11 Nov 2016:
  
  I’m going to go with a riddle from one of my favourite books, The Hobbit:
  
  Voiceless it cries,
  Wingless flutters,
  Toothless bites,
  Mouthless mutters.
  
  What is it?

Question: can you give me a puzzle that i can solve ??