**Q**
Is the following a factual statement?
"Changes in sex hormone levels have no role in the development of Osteoarthritis."
Options:
- yes
- no
**A**
no
Osteoarthritis is more prevalent among post-menopausal women than among men of the same age.


Does the following sentence make sense?
"Married people can enroll in United States Military Academy."
Options:
- yes
- no
no
One of the basic eligibility requirements of the candidates for going to United States Military Academy is not being married.


**Q**
"Menthol allows calcium channels and voltage-sensitive sodium channels thereby increasing neural activity in the body."
Is the above claim true?
Options:
- yes
- no
**A**
no
Menthol reduces the neural activity by blocking calcium and voltage sensitive sodium channels.


Does the following sentence make sense?
"The Pony Express lasted for several decades and was considered more successful than the telegraph."
Options:
- yes
- no
no
The telegraph handily replaced The Pony Express, which went backrupt in just a year and a half.


**Q**
Is the following sentence factually correct?
"The Exorcist refers to a horror film released in the United States, about a girl who is possessed by a demon."
Options:
- yes
- no
**A**
yes
The Exorcist (film) is a supernatural horror film and is well know in the United States.


**Q**
Yes / no, is the following a verifiable fact?
"Backing vocalists tend to be expensive to maintain."
**A**
no
Fees are negotiate between the artist, the label and the backing vocalist.