I have four wings, but cannot fly,
I never laugh and never cry;
on the same spot I'm always found,
toiling away with little sound.
What am I?
I am one of many,
You forget I'm here, but I'm just below.
Without me, you'd surely topple,
Go ahead, what am I?
Select a pack of riddles and try to solve it in an interesting way.
This riddle appears in the following downloadable PDF files: