Answer:
I am a rock group with four members. All dead one was assassinated.
I belong to everyone. Sometimes make you happy sometimes make you sad. I will never end until the day you do.
First I may be your servant's name; then your desires I may proclaim; And when your mortal life is over hold all your wealth within my power.
What's 3/7 chicken, 2/3 cat, and 2/4 goat?
What starts with the letter “t”, is filled with “t” and ends in “t”?
I will disappear every time you say my name.