I feel He did this to inspire deeper thinking, if He just gave the disciples answers after He wasn’t around to physicaly ask and depend on, they wouldn’t be able to come to find answers without that deeper understanding.
He enabled them to ask and answer hard questions and situations themselves.
There is no universally agreed number, because it depends on what counts as a “direct answer.” But a commonly cited observation is:
Jesus was asked about 183 questions
He directly answered only about 3–8 of them
Instead, He often responded with:
another question,
a parable,
a rebuke,
or an illustration.
Many scholars and teachers also note that Jesus Himself asked over 300 questions in the Gospels.