[4]. Fowl, owl.

[5]. Prussia, Russia.

[6]. Tear, tea, head—thread.

[7]. Goat, oat, goa.

[8]. Take N from None, and leave One.

[9]. Wheel, heel, eel.

[10]. A, an, Ann, Anna, annal, annals.

[11]. Murmur.

[12]. Pay up.

[13]. Alice, malice.