Can you replace the question mark with a number?

Edinburgh Fringe 2023, the funniest joke: Lorna Rose Treen's zookeeper pun:

"I started dating a zookeeper,
but it turned out he was a cheetah."
~Lorna Rose Treen.

Here are the rest of the top 10 jokes:

"The most British thing I've ever heard?
A lady who said 'Well I'm sorry, but I don't apologise.'"
~Liz Guterbock.

"Last year I had a great joke about inflation.
But it's hardly worth it now."
~Amos Gill.

"When women gossip we get called bitchy;
but when men do it's called a podcast."
~Sikisa.

"I thought I'd start off with a joke about The Titanic
- just to break the ice."
~Masai Graham.

"How do coeliac Germans greet each other?
Gluten tag."
~Frank Lavender.

"My friend got locked in a coffee place overnight.
Now he only ever goes into Starbucks, not the rivals.
He's Costa-phobic."
~Roger Swift.

"I entered the 'How not to surrender' competition and
I won hands down."
~Bennett Arron.

"Nationwide must have looked pretty silly
when they opened their first branch."
~William Stone.

"My grandma describes herself as being in her 'twilight years'
which I love because they're great films."
~Daniel Foxx.