May or may not be normal. Let your pediatrician decide. Doctor has to see many other neurological details.

Any child developing Speech goes through some specific steps.. Repeating question again at this age is a normal learning phase in any child, which disappears as he develops further..between 2 to 3 yrs a child should start making a sentence and interested in hearing a story..if he or she lacks it then needs evaluation or help of a speech therapist..

It is normal.... Just introduce new words to him

It's normal , currently child is expanding vocabulary from yr words.. it's okie

Sometimes children do like this in learning phase.

If playful, than most likely it's normal

He has to be seen by a paediatrician  and also we have to assess his other aspects of interaction.His eyecontact,response to peers,known and unknown people etc..All this can be done on online consultation too.

Is he able to speak in 2-3 word sentences?? Are there any communication issues or behavioural issues..He needs to be assessed by the pediatrician first.