What does everyone know how to open but nobody know how to close?
What can always be measured but never can be seen?
In a one-story pink house, there was a pink cat, a pink fish, a pink computer, a pink chair, a pink table, a pink telephone, a pink shower– everything was pink! What color were the stairs?
When I take five and add six, I get eleven, but when I take six and add seven, I get one. What am I?
What is the coolest letter in the alphabet?
What is always on its way but never arrives?
What’s black when you get it, red when you use it, and white when you’re all through with it?
What is red but it smells like a blue paint?
What kind of a nut has a hole?
Someone’s mom has four sons north, south, and east. What is the name of the fourth son?