**Q**
Yes / no, is the following a verifiable fact?
"A Photon carries energy but it has zero mass."
**A**
yes
This is true because photon is a particle that represents the quantum of light.

**Q**
"Oscar Wilde sued an enemy for libel and won."
Is the above claim true?
Options:
- yes
- no
**A**
no
Oscar Wilde did sue for libel but lost disastrously, bankrupting himself and having to flee the country.

**Q**
Yes / no, is the following a verifiable fact?
"Many people cook Hamburgers on a grill during the fourth of July."
**A**
yes
The fourth of July is a popular grilling holiday and hamburgers can be cooked on a grill.