You Can!

No

You can do a cartwheel.

Used to. No more.

You can make a pot of chile on a cold winter day.

I can.

You can make your favorite dishes without a recipe.

Yes

You can make something even without an ingredient or two.

Nope, I'm a not-so-hot cook. :mmm

You can do jumping jacks.

Yes

You can make a good homemade stir-fry.

That I can do!

You can do a figure eight, skating.

I use to be able to.

You can do 20 pushups.

No, upper arm strength is not my thing. I can do modified pushups, but probably not 20.

You can do 50 squats without much problem.

I can't

You can erect a tent without much trouble.