Even though you're assuming that they know what a "date" is, still CCQ it anyway, just in case. I don't know where you're students are from, but if they're a multi-lingual class, then every little helps.
The questions you have there are fine to be honest. I don't know if you need a lot of CCQs for this, but if you want, you could also, add:
"Are they blind/can they see each other?" (if you wanted to cross reference the difference between 'being blind' and a 'blind date')