Polite Form Questions in Japanese Quiz

Which hiragana character is used as the question marker in polite sentences?

What should not be used with the question marker?

What is the purpose of the question marker?

Which particle is commonly used to ask real questions in casual speech?

What can be used instead of a particle when asking real questions in casual speech?

Which marker is not used with real questions in casual speech?

What is the purpose of the question marker?