Questions regarding restaurant. Please help.

[scott833]

1) One of the postive aspect of the restaurant is the speed/quickness in serving the food customer order.
2) The restaurant serve/prepare the food to customer in quickness.
3) The lunch menu will be available from what time to what time?

[bhaisahab]

1) One of the postive aspect of the restaurant is the speed/quickness in serving the food customer order.
2) The restaurant serve/prepare the food to customer in quickness.
3) The lunch menu will be available from what time to what time?

1) One of the postive aspects of the restaurant is the rapidity of service.
2) The restaurant serves the food to the customers quickly.
3) The lunch menu will be available from what time to what time?

[xpert]

1) One of the positive aspects of the restaurant is the speed/quickness in serving the food customer order.

2) The restaurant serves/prepares the food to customer in quickness.
3) The lunch menu will be available from what time to what time?

How about if you say:

1) One of the positive aspects of the restaurant is the quick service.
2) The restaurant prepares and serves food to the customers quickly.
3) The lunch menu will be available from 1:00 to 4:00 p.m.

Notice:
- I didn't correct all the mistakes.
- The first two sentences (1-2) express one idea.

I hope I helped you.