Perhaps he supplies creative ideas to the exam writers, but doesn't actually participate in the actual exam question formulation? Like an adviser?
Also, you guys are getting too down on Tasmania. Personally, I admire his amazing luck (he always survives by the skin of his teeth, no matter how risky the venture- see the snake bite question, the savage insect question), his courage in attempting the seemingly impossible, his mathematical prowess (I mean seriously, the only way he could have survived that snake bite was to instantly calculate the optimal route through the jungle/beach MENTALLY- none of that CAS crap we mortals have to use), his huge compassion (building a desalination plant for a native community) and his entrepreneurship (starting a wheat farm- what a legend). Plus, he's famous (his sister is making statues of him to sell, no doubt to his eager legion of fans from across the state), yet he continues doing what he does best: adventuring around the globe in search of fortune and adventure.
TL;DR- Tasmania Jones is a top bloke.