Questions within sentences

Which question within question is correct?

• Do you know what is the problem is?

• Do you know what the problem is?

• Do you know what is the problem ?

Which question within question is correct?

• Can you remember which site you used?

• Can you remember which site used you?

• Which site you used can you remember?

Which question within question is correct?

• Do you know what we do should ?

• Do you know what we should do?

• What we should do do you know ?

Which question within question is correct?

• Do you have any idea why it's making this sound?

• Do you have any idea why making this sound?

• Do you have any idea it's making this sound?

Which question within question is correct?

• Do you know the battery is charged?

• Do you know if the battery is charged?

• Do you know if the battery charged is ?

Which question within statement is correct?

• I don't know what the problem is.

• I don't know what is the problem.

• I don't know is what the problem.

Which question within statement is correct?

• I wonder if the battery fully charged is.

• I wonder if the battery is fully charged.

• I wonder if is the battery fully charged.

Which question within statement is correct?

• I have no idea I used which site.

• I have no idea site which I used.

• I have no idea which site I used.

Which question within question is correct?

• Do you know if there are any useful new apps for students?

• Do you know if there any useful new apps for students are ?

• Do you know if there any useful new apps are for students?

Which question within statement is correct?

• I have no idea why it's doing that is.

• I have no idea why it's doing that.

• I have no idea it's doing that why.