> odd-one-out: > red, blue, green, purple, jupiter > [...] > they also require a small amount of intelligence, which is no bad thing :) and making this a bit more field-specific would also rule out the captcha farmers. gauss, hamming, hann, triangular, glass cos, sin, cat, log, pow audacity, sweep, rezound, abiword, snd -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.
