Answer:
What body part is pronounced as one letter, but written with three, only two different letters are used?
I fly away as soon as you set me loose. People around you may slowly move away once they sense my presence.
I can fall off a building and live, but in water I will die. What am I?
I am the outstretched fingers that seize and hold the wind. Wisdom flows from me in other hands. Upon me are sweet dreams dreamt my merest touch brings laughter.
I go in hard, come out soft. Blow me hard and I'll make a pop. What am I?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.