Until it is measured, not known. Yet how you miss it when it has gone. What is it?
Take one out and scratch my head, I am now black but once was red. What am I?
If your uncle’s sister is not your aunt, what relation is she to you?
No matter how little or how much you use me, you change me every month. What am I?
Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?
I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?
He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?
Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?
What is red and smells like blue paint?
How far can you walk into the woods?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki
