A statement or a situation or an action which actually means the opposite of its surface meaning is called -

• Irony:
- A statement or a situation or an action which actually means the opposite of its surface meaning.
- Irony is when there are two contradicting meanings of the same situation, event, image, sentence, phrase, or story. In many cases, this refers to the difference between expectations and reality.

• The first sentence of Pride and Prejudice is an example of irony:
“It is a truth universally acknowledged, that a single man in
possession of a good fortune, must be in want of a wife.”

• This line from Samuel Coleridge’s “Rime of the Ancient Mariner” describes the dark irony of a sailor dying of thirst on his boat while he is surrounded by water.

• 'Irony' বলতে মূলত বক্তব্য জোরালো করতে নিজ চিন্তার সম্পূর্ণ বিপরীত কিছু বলে মনোভাব ব্যক্তকরণকে বুঝায়।
- প্রশংসার আদলে নিন্দা কিংবা নিন্দার আদলে প্রশংসা করা হয় এরূপ রচনা দ্বারা।
- অর্থাৎ এ ধরনের উক্তি দ্বারা যা বলা হয়, প্ৰকৃত অর্থ তার সম্পুর্ন বিপরীত বুঝানো হয়।

Options,
• A cliffhanger is when a story or plotline ends suddenly or a large plot twist occurs and is left unresolved.
• Diacope is when a writer repeats a word or phrase with one or more words in between.
• Doppelganger comes from a German word meaning “double-walker.” It’s a twin or double of some character, usually in the form of an evil twin.

Source: An ABC of English Literature - Dr M Mofizar Rahman and literaryterms.net