BRAINTEASERS

aa ab ae ai an ar as at ba be bi en er es et in is it na ne re si ta ti

aas aba abs ain air ais ait ana ane ani ant arb are ars art ass ate baa ban bar bas bat bee ben bes bet bin bis bit bra brr ear eat ens era ere ern err ers ess eta ins ire its nab nae neb nee net nib nit rai ran ras rat reb ree rei res ret ria rib rin sab sae sat sea see sei sen ser set sib sin sir sis sit sri tab tae tan tar tas tea tee ten tie tin tis

abas abet abri ains airn airs airt aits anas anes anis ansa anta ante anti ants arbs area ares aria arse arts asea ates baas bait bane bani bans bare barn bars base bass bast bate bats bean bear beat been beer bees beet bene bens bent best beta bets bias bier bine bins bint birr bise bite bits brae bran bras brat bree bren brie brin bris brit earn ears ease east eats eras erne erns errs erst eses esne etas etna ires isba nabe nabs near neat nebs ness nest nets nibs nite nits raia rain rais rani rant rare rase rate rats rear rebs rees rein reis rent rest rete rets rias ribs rins rise rite sabe sabs sain sane sans sari sate sati sear seas seat seen seer sees seis sene sent sera sere sers seta sets sibs sine sins sire sirs site sits snib snit sris stab star stir tabs tain tans tare tarn tars tass tear teas teen tees tens tern tier ties tine tins tire tree tres tsar