Difference between tell and speak

[Svetlana]

Test No. errors/inter-4 "When you go to France...", question 5

Yes, that's important because if you find yourself in a difficult situation, you can speak yourself out of it.

(a) important
(b) if
(c) yourself
(d) speak

Test No. errors/inter-4 "When you go to France...", answer 5

Yes, that's important because if you find yourself in a difficult situation, you can talk yourself out of it.

Correct entry: talk
The error was: (d) speak

You have not found the error.
Yes, that's important because if you find yourself in a difficult situation, you can speak yourself out of it.
_________________________

Good day,
Could you explain please the difference between using "tell" and "speak"? Thank you.

[Torsten]

You can tell a story and you can speak a language or you can speak to a person about something.

TOEIC listening, photographs: A man plays golf

[Rich7]

you can talk yourself out of it.

What about this:if you find yourself in a difficult situation you can get out of it by talking with eloquence.

[Bt_Unlock18]

what if my answer is 'you can express yourself out of it'> could you please tell me if this is correct? thank you...