#1
What comes once in a minute, twice in a moment, but never in a thousand years?
The letter 'M'
ExplanationThe letter 'M' appears once in the word 'minute' and twice in the word 'moment', but it never appears in the phrase 'a thousand years'.
#2
I speak without a mouth and hear without ears. I have no body, but I come alive with the wind. What am I?
An echo
ExplanationAn echo is a sound that reflects off surfaces and is heard again, seemingly without a source.
#3
I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?
Pencil lead
ExplanationPencil lead is mined, encased in wood to form a pencil, and used for writing without ever being 'released'.