What always asks the same question but never gives the answer its a 3 letter word?

What is the nature of the person whose name is sital? What does 10 T in the S S D mean? How can one clock in an east coast state and another clock in a west coast state have exactly the same time? What is a six letter word for hot cereal? What means eerie or ghostly? What funny pranks can a sister play on a brothers friend? What does the brain teaser va ders? What is a four letter word for old fogy? What was Monoply? What is a nine letter word for gaining knowledge? How do you spell the rolled pastry called Kalacci? What is it called when there is the word rosie and then a ring around it? When does hypostasis begin? How to backup tamagotchi? What piece of chess is worth nine points? What does sanity is the playground for the unimaginative mean? Something you can drink that begins with D? How can you tell what size a bouquet is on tamagotchi connection? Which of the following is not a true statement? Can we use ev3 programming software on nxt?