Anything and Whatever are very commonly used response from people.

Sometimes, when you asked them what you want to have for lunch.

The response normally would be "Anything" or "Whatever"

Next time when someone replied you like that, you can find an item that match their response.

It is a new drink from Singapore.

If they want Anything. Give them this.

And this will be for those who asked for Whatever.

One is carbonated and one is non-carbonated. The taste are not really great. Try it and you may like it.