chet wrote: It could be any question, with no multiple choice answer. Type the answer in the box.
"three plus three" (answer six)
"birds build" (answer nests)
Perhaps an interface where the site manager could add their own questions.
A sailing site might ask "steering stick" (answer tiller)
A math site might ask "pi to the thirteenth decimal" (answer, well, I don't know the answer)
Full text challenges that require the user to supply a specific answer with local customization available.
Ok.. so could you cover the answers..
6, six, Six, SiX, SIX, sIX etc..
Nest, Nests etc..
Multiple choice is really the only option on these sorts of question..