Answer:
If you have me, you want to tell me. If you tell me, you don't have me.
The more you take, the more you leave behind. What are they?
Which one of Santa's reindeer can be seen on Valentines day?
Sitting down you have it, Standing up you don't.
Before Mount Everest was discovered, what was the highest mountain on Earth?
How did the farmer find his wife?