Yes. Two or more people can be assigned the same IP consecutively if using a dialup ISP. If you are talking about the IP address that one's computer "reports as" when Surfing the web, then it's possible that hundreds of computers all share the same IP address at the very same time. It all depends on if your ISP is using caching and proxy techniques. All ISP assign pools around your city and your ISP sets your internet up to join one making you share an IP with hundreds of other people around your area so every IPV4 IP doesn't get taken up by dedicated IPs.
no they cant
No, two people can't use the same e-mail address on facebook, however you can associate one e-mail address with different pages on facebook, such as business, organizations, and personal pages.
That would depend on the country, even though they may live in the same climatic zone different people in different countries have different cultures.
no same rules in all countries
'French people' aren't a different species of human. Historically and today they where the same as European and american countries.
these countries were not colonised by the same countries so their style of living was adapted by the people who were found the originally.
They are different two countries. However, they are the same as two European countries.
No two people can have the same gmail address. If there are 2 accounts, there will be 2 different email ID's. The Facebook account will be different in that case too.
Africa is a continent of many different countries with languages and customs as diversified as many other nations.
Yes.
Different countries in the same part of the world.
Samoans have the same food like other countries, but like other countries as well, they have their own delicacies, and their own way of preparing food, recipes, etc.