Checked luggage is that which has been checked in: weighed, labelled, and taken away to be loaded onto the plane. You don't see it again until you have landed at the other end and the plane is unloaded. Hand luggage is that which you can take onto the plane with you and have access to during the flight.
No, usually the checked weight is different from the weight of the hand luggage. Check with your airline
No.
Yes, but not more than 250ml.
Yes you can,
If this is sealed, then you can but if not, better to put this in the checked bagage
Yes, but not within your hand luggage, as it will be confiscated. You can carry several bottles within the checked-in luggage, however.
Highly unlikely - since medicines are rarely dispensed under pressure. Any medication should be in your hand luggage - not checked luggage, as you may be asked to produce it at any time by airport staff.
It will depend on where you are flying from. Generally shaving gel is considered as a liquid and it should be in checked-in luggage, not in hand luggage.
Yes alcohol in checked luggage is permisible.
If its in your checked luggage, not your carry ons.
This simply means luggages that can be carried by hand.
Checked luggage and hand carry should not more than 30 KG. Laptop is exception to this. Cheers.