Thought experiment

What is your favourite ________?

Fill in the blank with anything you want, anything you can think of. Food, drink, band, TV show, cheese, yoga position, shampoo, whatever. Just answer the question as you would normally:

What is your favourite ________?

Got the answer? Good.

Now another question:

If you could only use one ________ for the rest of your life, which one would it be?

(Replace the verb "use" with a more appropriate verb if necessary, e.g. eat, drink, watch, listen to - whatever goes best with the noun in the blank)

Are the answers the same?

Try with something else in the blank. Are the answers still the same?

For me, sometimes they are the same, sometimes they aren't. That's really weird.