Undergo Puns

That's a long time considering they're working around the clock.

A remodel.

He placed 30 silver coins as a bounty, and was peeved after a month had passed and nobody had taken the offer. He inquired to his squire, who responded that nobody would undergo such an unpleasant pheasant hunt for such a poultry sum.

The scuba diver turns to the marine and says "I can't handle this job anymore, I undergo too much pressure"

The marine looks at the diver and tells him "It may be hard now, but once you get used to it it'll all be smooth sailing"

but then I had to undergo emergency brain surgery and it really changed my mind.

I had to undergo x-rays of my back to screen for scoliosis and lordosis. When I told my dad I had to take back x-rays, he replied: "They just want to make sure you're not spineless."

I replied, "He isn't missing, he's just undergoing maintenance and will be back soon as the upgraded version, Kim Jong-deux!"