请 (qǐng) is used constantly in daily life. Its meaning is highly dependent on the context and the verb that follows it.
This is its most common use. The structure is always 请 + Verb.
请问 (qǐngwèn), literally “invite to ask,” is the standard way to politely preface a question to a stranger. It's equivalent to “Excuse me, may I ask…?”
Here, 请 (qǐng) functions as a full verb meaning “to invite.” The structure is 请 + Person + Action.
This is a very common extension of the “invite” meaning, especially in social situations.
In more formal or specific contexts, 请 (qǐng) means to formally request something or hire someone for a service.