I urgently need someone from Jiskha to check if these questions are grammatically correct. Thank you very much in advance.

1) Can you briefly repeat the content of your history dissertation in English?
2) What is the first part of the poem "The Waste Land" devoted to? What does the phrase unreal city allude to?
3) What kind of society is mirrored? Who is Mr Eugenides and what is he used to doing?
4) Who is Tiresias and why do present, past and future coexist in him? What does Tiresias see?
5)How is the Eliot’s Waste Land structured and what makes it a modernist poem?
6) What phase in Eliot’s career does the Waste Land represent?
7) What does the dry landscape of the waste land stand for?
8) What does the film “The life of Others” focus on?
9) How did Winston Churchill famously describe the situation between the Soviet and the American spheres of influence after the Second World War? 10) Why did Berlin Wall become the iconic symbol of the Cold War?
What does the word Stasi stand for? Who founded it and what was its main duty?
11) Through the telescreen the Thought Police monitor the life of its/their citizens

1) Briefly repeat the content of your history dissertation in English.

I'd make this a command instead of a question.

2) What is the first part of the poem "The Waste Land" devoted to? What does the phrase unreal city allude to?
OK

3) What kind of society is mirrored? Who is Mr Eugenides and what is he used to doing?
OK

4) Who is Tiresias, and what does he see? Why do the present, past, and future seem to coexist in him?
I made major changes here.

5)How is the Eliot’s Waste Land structured, and what makes it a modernist poem?
Comma needed in this compound sentence (question). I also don't think asking more than one question per item is a good idea. Students tend to skip over some questions when they are asked in groups like this.

6) What phase in Eliot’s career does the Waste Land represent?
OK

7) What does the dry landscape of the waste land stand for?
OK

8) What does the film The life of Others focus on?
Film titles, like books, need to be in italics, not quotation marks.

9) How did Winston Churchill famously describe the situation between the Soviet and the American spheres of influence after the Second World War?
OK

10) Why did the Berlin Wall become the iconic symbol of the Cold War?
I added a word. Do you see it?

What does the word Stasi stand for? Who founded it, and what was its main duty?
Same comments as for #5 above.

11) Through the telescreen, the Thought Police monitor the lives of their citizens.
Several corrections. Do you see them?

why do present past and future coexist in tiresias?

To check the grammatical correctness of the questions, you can follow these steps:

1) Read the questions carefully and check for any errors in sentence structure, word choice, and punctuation.

2) Ensure that the subject-verb agreement is correct. Make sure the verb matches the subject in number and person.

3) Check for appropriate use of pronouns, articles, and prepositions. Verify that they are used correctly and in the proper context.

4) Review the overall flow and coherence of the questions. Make sure they are clear and easy to understand.

Once you have reviewed the questions based on these steps, you can identify and correct any grammatical errors.