W/H + Helping Verb + Subject + Main Verb + Rest of the Sentence

Why did she leave the party early?
Where have they been traveling recently?
How will he solve this complex math problem?
When did they start renovating the house?
What can I do to improve my communication skills?
Why has the company decided to rebrand its products?
How did she manage to finish the project ahead of time?
Where will they go for their summer vacation?
What should I prepare for the upcoming presentation?
When has he ever experienced such a thrilling adventure?
How did they come up with this innovative idea?
Why will she attend the conference next week?
Where should we store these important documents?
What could be causing the computer to run so slowly?
How did he learn to play the guitar so skillfully?