What was your opinion of Mr. Comey during the transition?

The questions about Mr. Comey relate to whether Mr. Trump fired Mr. Comey last year to shield Mr. Flynn, or anyone else, from prosecution. Mr. Trump has denied that, saying he fired Mr. Comey because of his mishandling of the F.B.I.’s investigation into Hillary Clinton’s use of a private email server.

This question is important because, if Mr. Trump truly was upset about the Clinton investigation, he would have shown an early distaste for Mr. Comey.

What did you think about Mr. Comey’s intelligence briefing on Jan. 6, 2017, about Russian election interference?

The briefing revealed that American intelligence agencies had concluded that Russian operatives meddled in the election to hurt Mrs. Clinton and to boost Mr. Trump. Mr. Trump has repeatedly cast doubt on these conclusions and said he believes the Russian president, Vladimir V. Putin, who denies any interference.

What was your reaction to Mr. Comey’s briefing that day about other intelligence matters?

This question addresses documents written by a retired British spy, Christopher Steele, who said that Russia had gathered compromising information on Mr. Trump. The documents, which became known as the Steele Dossier, also claim that the Trump campaign had ties to the Russian government. Mr. Comey privately briefed Mr. Trump about these documents.

What was the purpose of your Jan. 27, 2017, dinner with Mr. Comey, and what was said?

A few weeks after his briefing, Mr. Comey was called to the White House for a private dinner. Mr. Comey’s notes say that Mr. Trump raised concerns about the Steele Dossier and said he needed loyalty from his F.B.I. director. This question touches on Mr. Trump’s true motivation for firing Mr. Comey: Was he dismissed because he was not loyal and would not shut down an F.B.I. investigation?

What was the purpose of your Feb. 14, 2017, meeting with Mr. Comey, and what was said?

That was a key moment. Mr. Comey testified that the president told him, “I hope you can see your way clear to letting this go, to letting Flynn go.” Mr. Trump has denied this.

What did you know about the F.B.I.’s investigation into Mr. Flynn and Russia in the days leading up to Mr. Comey’s testimony on March 20, 2017?

Mr. Comey’s testimony publicly confirmed that the F.B.I. was investigating members of the Trump campaign for possible coordination with Russia. Mr. Mueller wants to know what role that revelation played in Mr. Comey’s firing.

What did you do in reaction to the March 20 testimony? Describe your contacts with intelligence officials.

In the aftermath, The Post reported, Mr. Trump asked the United States’ top intelligence official, Daniel Coats, to pressure Mr. Comey to back off his investigation. Mr. Mueller wants to ask Mr. Trump about his contacts with Mr. Coats as well as the C.I.A.’s director at the time, Mike Pompeo, and the National Security Agency’s director, Michael S. Rogers. The conversations could reflect Mr. Trump’s growing frustration with Mr. Comey — not about the Clinton case, but about his refusal to shut down the Russia inquiry.

What did you think and do in reaction to the news that the special counsel was speaking to Mr. Rogers, Mr. Pompeo and Mr. Coats?

It is not clear whether Mr. Mueller knows something specific about Mr. Trump’s reaction to these interviews, but the question shows that Mr. Mueller is keenly interested in how Mr. Trump responded to each step of his investigation.

What was the purpose of your calls to Mr. Comey on March 30 and April 11, 2017?

Mr. Comey said that Mr. Trump called twice to ask him to say publicly that he was not under F.B.I. investigation. In the second call, Mr. Comey said, the president added: “I have been very loyal to you, very loyal. We had that thing, you know.”

What was the purpose of your April 11, 2017, statement to Maria Bartiromo?

While the White House ultimately said Mr. Comey was fired for breaking with Justice Department policy and discussing the Clinton investigation, Mr. Trump expressed no such qualms in an interview with Ms. Bartiromo of Fox Business Network. “Director Comey was very, very good to Hillary Clinton, that I can tell you,” he said. “If he weren’t, she would be, right now, going to trial.”

What did you think and do about Mr. Comey’s May 3, 2017, testimony?

In this Senate appearance, Mr. Comey described his handling of the Clinton investigation in detail. Mr. Comey was fired soon after. Mr. Mueller’s question suggests he wants to know why Mr. Trump soured.

Regarding the decision to fire Mr. Comey: When was it made? Why? Who played a role?

Over the past several months, Mr. Mueller has asked White House officials for the back story, and whether the public justification was accurate. He will be able to compare Mr. Trump’s answers to what he has learned elsewhere.

What did you mean when you told Russian diplomats on May 10, 2017, that firing Mr. Comey had taken the pressure off?

The day after Mr. Comey’s firing, Mr. Trump met with Russian officials in the Oval Office. There, The Times revealed, Mr. Trump suggested he had fired Mr. Comey because of the pressure from the Russia investigation.

“I just fired the head of the F.B.I. He was crazy, a real nut job,” Mr. Trump said. “I faced great pressure because of Russia. That’s taken off.”

What did you mean in your interview with Lester Holt about Mr. Comey and Russia?

Shortly after firing Mr. Comey, Mr. Trump undercut his own argument when he told NBC News that he had been thinking about the Russia investigation when he fired Mr. Comey.