Even on a Premium account, where you are allowed 1 minute crons, you would have to set up a schedule where the 1-minute job takes 4 of the 5 minutes, then skips a turn while your 5-minute job runs. Once an hour, it would need to skip an extra turn to allow the hourly to run (or you could skip a turn on the 5-minute job). And once a day you'd need to skip another job to run your daily. That means either a complicated cron schedule or a script that's smart enough to know what it's supposed to do on a particular run.