So what you want is:
The user sees Sheet1, with A1:C1 blank.
The user presses a button
Sheet 2 appears
The user presses another button
Sheet 1 re-appears, this time with some questions in A1:C1
Is that what you want?
If so,
Code:
Sub Button1_Click()
With ThisWorkbook.Sheets("Sheet2")
.Visible = xlSheetVisible
.Activate
End With
End Sub
Sub Button2_Click()
With ThisWorkbook.Sheets("Sheet1")
.Activate
.Range("A1").Value = "Question 1"
.Range("B1").Value = "Question 2"
.Range("C1").Value = "Question 3"
End With
End Sub
Its not clear how Conditional Formatting applies to your desired result.