біла пляма(недосліджене питання • But there were questions. Where was the body? – Утім, ця історія мала білі плями. Тіло так і не знайшлиbbc.com, bbc.combojana)
запитанняn(A question, usually from a drop-down list, that users can use to confirm their identity and reset their password in case they have forgotten it)