Daisy, something Lilly and daffodil are all white and yellow flowers.
Some six letter words with FF in the middle are:wafflebafflebufferduffermufflepifflesufferduffelpuffindiffer
pigpen
balloon
Rameshwaram
bookboombootcookcoolcoopcootdoorgoodgoongoophoodhookhooplookloonloomlooplootmoodmoonmoornookpoofpoorpoolrootrookroofroomsoonsoottoottooktoolwoodwoolwoofzoom
Yes, it is. Graduation and congratulations do not have the same letters in the middle.
Afar is a four letter word with f and a as the 2 middle letters in that order.
Some six letter words with FF in the middle are:wafflebafflebufferduffermufflepifflesufferduffelpuffindiffer
Pansy, daisy, tulip... poppy
pigpen
there is double letters in the middle of the each word
Some four letter words that start and end with vowels and have consonants as the middle letters are:abbaacheechoaxleidleableogle
ell
the word 'letter'?
tenet
misfit
carp