Laziness level: Nepalese.....

alternate to wit's end, use shortcut. cmd+B 0r ctrl+B

do you want to be cooler...show off to girls.....do this ( assume u have alternate paragraphs of Q and A)

create a macro and run , alt+F11

Sub boldalternate()
Dim para As Paragraph
Dim i As int
i = 1
For Each para In Selection.Paragraphs
If i Mod 2 = 0 Then
para.Range.Font.Bold = True
else
para.Range.Font.bold=False

End If
i = i + 1
Next i
End Sub

good luck...