You and I for a start.
Shakespeare was entertained the same as anyone else, when he had time.
In England alone, about five million people lived at the same time as Shakespeare.
Yes
Apart from being both in the volume S in an encyclopedia, they were never in the same place at the same time.
Many many authors did. Christopher Marlowe was born in the same year as Shakespeare. Miguel de Cervantes died on the same date (but, curiously, not on the same day) as Shakespeare. Bacon, Spenser, Jonson, Descartes, and Milton all lived contemporaneously with Shakespeare.
elizabeth 1 and James 1
Same as they do nowadays--the audience.
Queen Elizabeth I ruled England when Shakespeare came to London. This is why the Elizabethan and Shakespearean refer to the same time period.
At least for part of Shakespeare's time, she was Mrs. William Shakespeare.
Shakespeare = Shakespeare(names are usually the same in all languages)
Shakespeare wrote in English, the same as your question and my answer.
Edward de Vere and William Shakespeare are two quite different people who lived in more or less the same place at approximately the same time. Even if he wrote everything credited to Shakespeare (and all the evidence there is on the subject, and there is quite a lot, says he didn't and Shakespeare did), he still would have been a different person from William Shakespeare. Edward de Vere is not Shakespeare in the same way that Nelson Mandela is not Barack Obama.