Question: what are effective questioning techniques?
Answer: Closed questions (aka the 'Polar' question) Closed, or 'polar' questions generally invite a one-word answer, such as 'yes' or 'no'. ... 
Open questions. ... 
Probing questions. ... 
Leading questions. ... 
Loaded questions. ... 
Funnel questions. ... 
Recall and process questions. ... 
Rhetorical questions.