[tithe]

How about this one?

   "What do you call the number of times that one number can be divided by another?" A) Dividend, B) Divisor, C) Quotient.

And a minor UX nitpick: please wrap the input element inside of a <label> tag, it makes it much easier to interact with form elements (in that I can click on the text to mark the element):

      <label class="answer">
        <input type="radio" name="q4" value="wrong" /> Condensation
      </label>

[sjrd]

The correct answer to that question would be the Logarithm. 32 can be divided 5 times by 2 before it becomes 1 and you can't divided it anymore. I think the phrasing of the question is incorrect.

That's the only question I got wrong because it did not make any sense to me.

[tcistull]

Done! and Done!

[devsda]

I have one suggestion. The dialog at the end like "you got the following questions wrong: 23" can be easily mistaken for the number of questions answered wrong. I did!

If that be changed to avoid the confusion, it will be great.

[tcistull]

Great point with the label!