Known answer: yes
Now, what could be the question and solution? Is H's most common two letter pair partner a freebie in Wheel of Fortune bonus round?
H forms the most common two letter pair in the English language along with the letter T. The Wheel of Fortune bonus round gives the player six free letters: R, S, T, L, N, E.

Known answer: no
Now, what could be the question and solution? Did Julius Caesar read books on Pharmacology?
Pharmacology has its origins in the Middle Ages. The Middle Ages took place from 476 AD-1453 AD. Julius Caesar lived from 100 BC-44 BC.

Known answer: no
Now, what could be the question and solution? Was Moliere Queen Margot's ill fated lover?
Queen Margot is a character in Alexande Dumas's La Reine Margot. Queen Margot keeps the head of her executed lover. Joseph Boniface de La Mole, nicknamed La Mole, was executed as a conspirator against Queen Margot's kingdom. Queen Margot is set during the St. Bartholomew's Day Massacre which occurred in 1572. Moliere was born in 1622.

Known answer: yes
Now, what could be the question and solution?
Would toast for a vegan have margarine instead of butter?
Margarine is typically made without the use of dairy ingredients. Vegans do not eat any animal products, including dairy and eggs.