Answer:
I never sleep yet sometimes I weep. I can get angry or just be happy. Wherever you go, I will follow. No matter what you do, I will be there. I cannot die. What am I?
What has 4 fingers and a thumb but is not living?
I am the building with the most number of stories.
I can be sweet or sour. I do not rhyme with any other word
You may enter, but you may not come in. I have space, but no room, I have keys, but open no lock. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.