Name one program that's better at a myriad of (complex) tasks than a human.
Individual intelligence-technologies (pace Feigenbaum's "expert systems") routinely outperform humans at individual complex tasks (e.g. calculators are better than humans at performing complex calculations.)
Conversation is immensely complex....The major "complex" tasks in which humans engage are learning and internal information sharing...dynamic movement ...socialization - communication, especially...and, arguably, invention. Honestly, the things you listed pale in complexity to any of the above.
Agreed. If we wanted to build a program that could hold a conversation (socialize/communicate), what test might we use? Passing a Turing test (i.e. having a program "trick" us into thinking it's human) represents a purely formal accomplishment. Twitter-bots probably pass Turing every day...in an established environment of brief exchange. On the other hand, something like SIRI gives us (the first inklings) of useful content...but then SIRI isn't trying to trick us out of knowing we're talking to a program.