Good Riddles

 
Riddle #2 (easy)

Question: What occurs once in a minute, twice in a moment and never in one thousand years?

Riddle #3 (easy)

Question: What can you catch but not throw?

Riddle #5 (easy)

Question: What is so delicate that even mentioning it breaks it?

Riddle #6 (easy)

Question: What kind of tree is carried in your hand?

Question: What has a single eye but cannot see?