Dramatic Irony is when you try to do something but do the opposite
Situational irony is when the reader knows something that the character doesn't
And verbal irony is saying something but it means a totally different thing
The phrase was borrowed into English in the 1500s by people who made a formal study of logic. For them it meant a conclusion that does not follow from the statements that lead to it. But we now use non sequitur for any kind of statement that seems to come out of the blue
Answer: Nixon planned to officially resign at noon on the day following his speech.
I believe the answer is Land exploration