▁also ▁on ▁the ▁on ion , ▁but ▁noted ▁for ▁its ▁double ▁ent endre , ▁since ▁in ▁that ▁r iddle ▁what ▁to ▁many ▁readers ▁will ▁come ▁first ▁to ▁mind ▁as ▁the ▁obvious ▁solution ▁to ▁the ▁r iddle ▁is ▁' pen is '. ▁Meanwhile , ▁its ▁analog ue ▁in ▁the ▁late - ant ique ▁Latin ▁r idd les ▁of ▁Sym ph os ius ▁is : ▁ ▁Ed itions ▁▁▁ ▁Kra pp , ▁George ▁Philip ▁and ▁Elli ott ▁Van ▁Kirk ▁Dob bie ▁( eds ), ▁The ▁Ex eter ▁Book , ▁The ▁Ang lo - S ax on ▁Po etic ▁Records , ▁ 3 ▁( New ▁York : ▁Columbia ▁University ▁Press , ▁ 1 9 3 6 ), ▁p .   2 3 0 . ▁ ▁William son , ▁Craig ▁( ed .), ▁The ▁Old ▁English ▁R idd les ▁of ▁the ▁Ex eter ▁Book ▁( Ch ap el ▁Hill : ▁University ▁of ▁North ▁Carolina ▁Press , ▁ 1 9 7 7 ). ▁ ▁Mu ir , ▁Bernard ▁J . ▁( ed .), ▁The ▁Ex eter ▁Anth ology ▁of ▁Old ▁English ▁Po etry : ▁An ▁Edition ▁of ▁Ex eter ▁Dean ▁and ▁Chapter ▁MS ▁ 3 5 0 1 , ▁ 2 nd ▁ed n , ▁ 2 ▁vol s ▁( Ex eter : ▁Ex eter ▁University ▁Press , ▁ 2 0 0 0 ). ▁ ▁References ▁▁ ▁Category : R idd les ▁Category : Old ▁English ▁literature ▁Category : Old ▁English ▁poetry <0x0A> </s> ▁In ▁en zym ology , ▁a ▁pal m ito yl - Co A ▁hyd