well as far as scoring, it would probobly be a good idea for a label. Now to keep score, you would want to create a variable and everytime someone gets a question correct you add to the score.
Example
Dim Score As Integer
Private Sub Command1_Click()
If Text1.Text = "Test" Then
Score = Score + 1
Label1.Caption = Score
End If
End Sub
Private Sub Form_Load()
Label1.Caption = Score
End Sub