Answer:
Tickle with your fingers and a song it will sing. Be careful, though, you may break a string. What is it?
This is a dish containing beans, sometimes baked but, despite the name, usually stewed, in a sauce
What is it that after you take away the whole, some still remains?
The more you take away, the bigger it gets.
A tasty reward given to well behaved dogs and kids
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.