QUESTION: Generate a question with a factual answer?

ANS: What's the minimum number of layers a PCB can have to be considered "multi-layer"?

QUESTION: Generate a question with a factual answer?

ANS: Who was in possession of large herds that would produce more livestock?

QUESTION: Generate a question with a factual answer?

ANS: What were the consequences of John William Bean's attempt to fire at the Queen?

QUESTION: Generate a question with a factual answer?

ANS:
What type of climate does Nanjing enjoy?