Finding a use for a seemingly useless superpower

[Yerushalmi]

The ability to read your own thoughts, but only when you're thinking them. And with a half-second delay.

Now that's useless.

Even though I don't think it's a superpower, I've thought of a use. If we're living in a world with superpowers, we're clearly in a comic book - and this is exactly the sort of power that would give you immunity to mind control, using the comic book logic "if you can hear what you're thinking half a second after you think it, then you'll hear the difference between your own thoughts and the ones the supervillain is forcing you to think, and you'll break free".

Heck, doesn't that sound exactly like the sort of thing that would be explained at length to nobody but the reader in internal thought bubbles by a third-tier X-Men character?

The ability to dictate faster than an auctioneer.

The ability to speak really really fast? Heck of a lot of uses. You'll get hired for prescription drug commercials, for one.

Invulnerability to bullets, activated by getting killed with a bullet.

Three possible responses:
1) That's not a superpower. If you or I get killed by a bullet, we'd be no longer adversely affected by bullets either.
2) You can get killed and resuscitated via CPR.
3) Do you know how many times people die and come back to life in comic books?