[Loocid]

If you're storing it next to the password, then you've killed the point of the recovery questions anyway. May as well not store them at all.

[giraffe_lady]

If that's an option it's usually what I do but often they're mandatory.

[nearting]

That assumes that there's no other way to get your password than by accessing the contents of your password manager. The service itself could have its passwords/hashes leaked, and people unfortunately do reuse passwords across services even with a password manager, so it's very plausible for someone to get your password but not the answers to your questions.