Not legally in international flights.
carry on as luggage...
how much luggage am I allowed to bring
I guess so. But you surely can't bring canned food in you carry-on luggage.
can we bring our ps3 on hand luggage
No
If it is in your carry on or luggage.
Nope not in your carry on but you can put it in your check in luggage.
Sure it's not a liquid, so why not?
your luggage, money in case you have to eat there
don't bring liquids
No you can not bring any type of sharpe item. You can place it in your check-in luggage.
the stuff that they had room for in their luggage, such as seeds and tools.