Answer:
I will disappear every time you say my name.
Deposit red liquid in me.
If you have it, you donβt share it. If you share it, you donβt have it. What is it?
Brown I am and much admired. Many horses have I tried. Tire a horse and worry a man, tell me this riddle if you can. What am I?
I fill a room but take no space. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.