Bonjour est ce que quelqu’un pourrais m’aider? enft avec les 6 phrases bah faut les transformer en question

Bonjour alors voici les transformations en question :
1- What does the 95% represent.
2- Do most of the teenagers have a cellphone?
3- What does the three quarters say?
4- Is it true that there are more than 4 in 5 Us teens that go to bed with their phones.
5- Are they sure that The majority of people use social media.