Simple game. The first person (me) posts a riddle. The next person posts the answer to that riddle, and another riddle. If the second person answers it correctly, the first person edits their post if they are correct or wrong. I shall keep a scoreboard. (if you don't know the answer, just say I don't know, there is no penalty.)
Scoreboard
Riddle:
Turn lockless key,
Cross pathless bridge,
Shoot arrowless bow,
Scratch crying cat,
And I will sing sweet if you do all that.
What am I?