Riddle ideas for Prom?

So, I'm asking a girl to Prom. But in a pretty creative way. I'm sending cards anonymously and posters with coded messages, when decoded you find riddles. Then you answer each riddle, pile the answers together, and you have a word. Now I do this for "Will" "you" "go" "to" and so on. When she solves it, the riddles come out as "Will you go to Mormon Prom with...". What I'm asking is for ideas for riddles, or riddles themselves. I've already done "Will" and I have several other words laid out, just not delivered. So any ideas??