Mine know a few basics...
Buck fetches his furry mice. It took a while for him to bring the mouse back to me after he found it, as he always expected me to pick it back up even when he was closer to it.
Tess knows the High Five. She's a tortie, so she gets a bit whacky at times and when she didn't want to be bothered, she'd stand up on her hind legs and swat at me. She mellowed out as she got older but I taught her how to do it without being in a bad mood. Sometimes she'll get lazy and just High Five me while she's laying down.
My BooBoo used to know how to beg. He passed on last year but he would stand up straight on his hindlegs like a prairie dog as soon as I said "beg."
Pretty much all of my cats know the "jump" trick. I say Jump and they jump up on my chest or shoulder from where ever they are. Unfortunately, the trick kind of backfired with Junior. Whenever he wants attention, he'll just be flying through the air at me, whether I ask him to or not!