Goal and options: Cut onions quickly for burgers.
output answer: Use a potato peeler.

Goal and options: Keep from sawing fingers off on a table saw while guiding wood over the blade.
output answer: Use a short piece of 2x4 to push the wood over the blade as you get closer to it.

Goal and options: What type of oil should be used to make a glass bottle oil lamp?
output answer:
Olive oil.