A riddle! Which of the following words is the odd one out? Chocolate Biscuit Lemonade Jelly Cake?

By Stuart O'Neill

Biscuit ... Cos say it ... Keep saying biscuit over and over ... Then say it slooooowly ... It's a weird as' word... So I'm correct cos I said so ...biscuit biscuit biscuit ... Bisssssssssssscccuuuiiit :) biscuit ... Lol :)  ... I'm freakin myself out :)  biscuit. I'm not high so it's fine.