Answer:
What has feet and legs, and nothing else?
I am the noblest musical instrument
Before Mt. Everest was discovered what was the highest mountain in the world?
I go in hard, come out soft. Blow me hard and I'll make a pop. What am I?
Everyone asks for me but yet everyone hates to face me. For someone I am agony, for others I am relief! What am I?
The answer I give is yes, but what I mean is no. What was the question?