I am a mollusc

Remove my first, and I'll make you quite fast

Now remove my second, and you won't feel best

Now remove my third, and you'll get a square seven

Now remove my fourth, and it's lost

What am I?

  • 3
    $\begingroup$ Intriguingly, seems to have two possible valid answers! $\endgroup$ Mar 7 at 15:15
  • 1
    $\begingroup$ @JosephDoggie - It's quite remarkable how well both answers fit. If it wasn't intentional OP should pretend it was. $\endgroup$
    – BenM
    Mar 7 at 20:15

2 Answers 2


You are a



A snail is a mollusc. A nail will hold you in place. To ail is to be sick. IL can be read as $49=7^2$ in Roman numerals if you adapt the prefixing rules. L is a loss.

I started with the L for a loss, then IL was clear and indicated the right track.

  • 4
    $\begingroup$ I don't quite get the nail one. The question says that it should make you fast, but a nail stops you? $\endgroup$ Mar 6 at 5:56
  • 8
    $\begingroup$ @TLEontest77: Not fast as in quick, but fast as in sense 1 (adj/adv) here $\endgroup$
    – M Oehm
    Mar 6 at 6:19
  • 1
    $\begingroup$ Oh, I misunderstood. +1 for a great answer! $\endgroup$ Mar 6 at 9:20
  • 3
    $\begingroup$ @TLEontest77: Think of the verb fasten. $\endgroup$ Mar 6 at 12:18
  • 2
    $\begingroup$ @TLEontest77 "Fast" is a great example of a Janus word. $\endgroup$
    – AdamO
    Mar 6 at 17:58

You are a



-1: If you "lug" something, it's getting moved -2: If you feel "ug", you're not feeling well -3: "g" is the 7th letter of the alphabet -4: There's nothing left!


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