Answer:
I spend the day at the window, go to the table for meals, and hide at night. What am I?
When I am alive, people sing. When I am dead, people clap hands. What am I?
You can see me in water, but I never get wet. What am I?
Of these things - I have two. One for me - and one for you. And when you ask about the price I simply smile and nod twice.
What is brown and sticky?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.