What to say when you do not know the answer
Freezing in an interview is common. Here is a way to stay useful when the question is outside what you have done.
Silence is worse than a partial answer
Interviewers expect gaps. They are watching whether you pretend, shut down, or think out loud. A short honest answer keeps the conversation moving.
The goal is not to bluff a skill you do not have. It is to show how you would get to a good answer on the job.
Say what you do know first
Start with the closest experience you have. “I have not run paid ads, but I have written the landing pages those ads pointed to, and I sat in on the weekly results.”
That sentence tells them the boundary and the overlap. Most roles are hired on overlap.
A line you can reuse
Try: “I have not done that exact thing. Here is how I would approach it, and here is a similar problem I have solved.” Then give one step and one example.
If you truly need a fact you do not have, say you would check it before deciding. Name the source: the data, the customer, the policy, a colleague who owns it.
Do not fill the gap with apology
“Sorry, I am not sure, I am really bad at this” makes a small gap sound like a character flaw. One calm sentence is enough.
Also avoid inventing a metric. A made-up number is the thing that ends the process, not the missing skill.
Close by offering to follow up
If the topic matters to the role, offer a short sample after the call: a rewritten paragraph, a one-page plan, or the steps you would take in the first week.
Only offer what you will actually send within a day. A follow-up you complete is stronger than a perfect answer you did not have in the room.