Former Florida Gov. Jeb Bush said Monday that he would take on 2016 GOP presidential rival Donald Trump in a one-on-one debate “anytime, anyplace.”

At a luncheon event in Florida, Mr. Bush was asked what he would like to say to Mr. Trump if he walked into the room.

“[I’d] say, Donald, I’ll take you on, one-on-one in a debate — anytime, anyplace,” Mr. Bush said. “You name it and I’ll do it.”

Mr. Bush has been a frequent target of Mr. Trump, including in a series of Christmas Eve tweets Mr. Trump fired out last week.

“Poor @JebBush spent $50 million on his campaign, I spent almost nothing. He’s bottom (and gone), I’m top (by a lot). That’s what U.S. needs!” Mr. Trump tweeted.

“Wow, even lowly Rand Paul has just past @JebBush in the new @CNN Poll. Jeb is at 3%, I’m at 39%. Stop throwing your money down the drain!” Mr. Trump also tweeted.

Asked Monday who he thought the funniest of his fellow candidates is, Mr. Bush named former Arkansas Gov. Huckabee and New Jersey Gov. Chris Christie.

“I’d say the guy with the quickest wit is Huckabee — he’s actually hilarious,” Mr. Bush said. “Chris Christie’s pretty funny as well in a different kind of style. You can imagine a former governor from Arkansas being slightly different than a current governor from Jersey. But they both are pretty funny.

“You thought I was going to say somebody else,” he quipped.