Understanding Question Words

What punctuation mark is essential at the end of a question?

Which question word would you use to ask about someone's favorite food?

If you want to know the name of a person, which question word should you use?

Which question word helps you find out the location of an object?

To inquire about the time of an event, which question word is appropriate?

Which question word would you use to understand the reason behind an action?

If you want to know why someone is feeling a certain way, which question word should you use?

Which question word is used to ask about the method of doing something?

To find out the process of making a sandwich, which question word would you use?

If you want to know someone's age, which question word is suitable?