1. Why is Sharpedo only the front half of a shark?
Sharpedo's name comes from
shark and
torpedo. It's not meant to be only the front half; it's just combining elements from sharks and torpedoes, and it ended up happening to look like a shark's front half.
2. Does Diglett really have feet?
This has been confirmed by a Mystery Dungeon quote:
Diglett: "My feet feel like they're still walking on air..."
Mudkip: "(Feet...?)"
Magnemite: "(HE HAS THEM? FEET?)"
I suppose that depends on whether or not you consider Mystery Dungeon canon, though.
3. How does a Pokemon learn a TM or a HM?
Since TMs are differently portrayed in different media, there's no single answer to this. Different ideas have been presented for each of them, but the one that makes the most sense, IMO, is that TMs, given their disc-like shape, can be inserted into the TM Case, which will then show the Pokémon some manner of tutorial for learning the move.
That one's just a theory, though, not canon.
Here are my questions.
–Poké Balls presumably require fairly advanced technology to manufacture, so how can Kurt create them out of Berries, without any evident machinery?
–Why doesn't Heatran shut its eyes when asleep in XYORAS?
–Why is Mega Alakazam a foot shorter than its non-Mega-Evolved form, while retaining the weight?
–How does filling a Pokédex work?
And fine, I'll state the obvious.
–How in the
world did Pikachu lose to Trip's Lv. 5 Snivy?!