Yes.
The British established the Kenya Colony.
Yes, before independence, it was Northern Rhodesia.
The United Kingdom
Not all of Africa was colonized by the British. There were French, Belgian, Portuguese and Spanish colonies, too.
There were a great many countries that never were under British control. There were even more that were not a British colony before they were declared independent. On the great continent of Africa there is only one. That would be Ethiopia.
Nigeria.
There were a great many countries that never were under British control. There were even more that were not a British colony before they were declared independent. On the great continent of Africa there is only one. That would be Ethiopia.
The South American country of Guyana was British Guiana prior to its independence.
No, Pennsylvania was no longer a colony after the Treaty of Paris in 1783. The treaty officially ended the American Revolutionary War and recognized the independence of the United States, which included Pennsylvania as one of the original states. Prior to this, Pennsylvania had been a British colony, but it transitioned to statehood following the war and the establishment of the U.S. government.
There were several British Generals in North America prior to independence.
Mozambique and Rwanda are members of the Commonwealth of Nations that had no previous colonial or constitutional links with the United Kingdom. Mozambique had been a Portuegese colony and Rwanda had been a Belgian colony. Most of Cameroon had been a French Mandate / Trust Territory but a small portion was a British Mandate /Trust Territory prior to independence. Namibia might also be considered in this regard. It was a German colony which became a Mandate of South Africa - not of the United Kingdom - after the Frist World War. It finally gained independence on 21 March 1990.
Prior to becoming an American-British colony, the area that is now Delaware was settled by Swedes and Dutch immigrants. In 1682, it was ceded to the powerful British. Soon after it became one of the thirteen original American colonies.