The more of this there is, the less you see. What is it?
Darkness
I’m tall when I’m young, and I’m short when I’m old. What am I?
Candle
If eleven plus two equals one, what does nine plus five equal?
11 o'clock plus 2 hours = 1 o'clock
9 o'clock plus 5 hours = 2 o'clock
What is always in front of you but can’t be seen?
The future
If I have it, I don’t share it. If I share it, I don’t have it. What is it?
A secret
I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I?
An echo
What word starts with E and ends with E but only has one letter in it?
Envelope
I turn once, what is out will not get in. I turn again, what is in will not get out. What am I?
Keyboard
There is a dead man in the middle of a field, nothing is around him and there are no footprints of any sort. There is an unopened package next to him. How did he die?
Failed Parachute
What is it that given one, you'll have either two or none?
A choice
I have keys but no locks.I have a space but no room.You can enter, but you can’t go outside.
What am I?
A Keyboard
What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?
River