The idea is to keep bots away, not everyone... though a Retard Shield might be...interesting.

WW has told me that the questionairre is single input, which is slightly annoying, but in no way affects the questions - still send a question and four possibilities (unless it's a question which can be asked and answered straight off), we'll just include all in the question and give an instruction to those signing up to type the correct answer in the box.