Answer:
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
Alone I am 24th with a friend I am 20. Another friend and I am unclean.
What begins with T ends with T and has T in it?
I was not born but I am here. I have no name but I am given many. I was made by science and life
I have all the knowledge you have. But I am so small that I can fit into your hands. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.