Could Stephen King join the NASA Astronaut Corps?
Rationale first then the answer.
NASA Astronaut Corps candidates must have a master's degree from an accredited institution in engineering, biological science, physical science or mathematics. Stephen King studied at the University of Maine, graduating in 1970 with a Bachelor of Arts in English.. The answer is: no.

Are both founders of Ben & Jerry's still involved in the company?
Rationale first then the answer.
Ben & Jerry's was founded by Ben Cohen and Jerry Greenfield. The founders sold the company to Unilever in 2000.. The answer is: no.

Can a prime number be represented by the number of days in a week?
Rationale first then the answer.
There are seven days in a week. Seven is a prime number.. The answer is: yes.