A radical skeptic might be willing to doubt which of the following?

Question

3 + 5 = 8
Grass is green.
Cheese is fattening.
All of the above

I think it would be that cheese is fattening but not exactly sure. Please help!

Answer 1

I think a radical skeptic would doubt all of those statements.

3 + 5 = 8 >> but only in base ten
Grass is green >> It doesn't appear green in the dark or during a severe drought.

Cheese may be fattening for some people -- and only if you eat it.

http://en.wikipedia.org/wiki/Radical_skepticism