I am an odd number. Take away one letter and I become even. Who am I?

LOL...

Show Spoiler Hide Spoiler

Seven

Yup! Let’s see who else gets it without looking at your spoiler.

I would be happy to edit my reply and remove the answer if you would like.

If I post my answer, game over...

Got it! Without looking at the spoiler.

I looked at the spoiler already.

No need. Let's see who has A) the willpower not to peek and B)the reasoning to figure it out.

Even? Take away one letter, the S? Is that correct?

You're waiting to see who has the willpower to resist on a shaving forum?
Well, this is the joke sub-forum.

Got it.