Answer:
You have a bucket full with 5 gallons of water. What can you ADD to it in order to make it 3 gallons?
There are 20 birds in a tree. A man comes and shoots one of the birds. How many birds are left?
A traveller moved from North to East then to West and lastly South.. What was he looking for?
What is yours but only used by others?
Is an older one-hundred dollar bill worth more than a newer one?
When is it bad luck to see a black cat?