Yes / no, is the following a verifiable fact?
"The Great Lakes contain 21% of the world's surface fresh water by volume."
yes
The Great Lakes are the largest group of freshwater lakes on Earth by total area.

Is the following sentence factually correct?
"Artillery cannot possibly be dangerous to the user."
Options:
- yes
- no
no
Artillery is an explosive weapon that causes explosions which can be unsafe.

Claim: "Timbaland produced hit albums and singles."
Is the claim above correct, and can it be verified by human common sense and without a web search?
Options:
- yes
- no
yes
Timbaland has been producing albums and singles since the early 1990s.

Is the following sentence factually correct?
"Warren Buffett has made billions of dollars in his lifetime."
Options:
- yes
- no
yes
Warren Buffet is a successful business man that has made billions of dollars in his lifetime.