Here are the possible solutions for they have numbers and letters clue
Answer
Clue
Relevancy
brasizes
Clue
They have numbers and letters
synesthesia
Clue
Or maybe the subjects have ___, a condition in which letters and numbers are perceived as colors
newt
Clue
Gingrich who said "females have biological problems staying in a ditch for thirty days because they get infections and they don't have upper body strength"
Definition
a tailed amphibian of the salamander family, also EWT
grouprates
Clue
Smaller numbers for larger numbers
pollster
Clue
One who gets numbers by calling numbers
Definition
one that polls, also POLLER, POLLIST
radixes
Clue
Numbers taken as the base of a system of numbers
Definition
RADIX, (Latin) a root; a root-number or numerical base; a root word or stem
elements
Clue
They have atomic numbers
Definition
ELEMENT, a substance that cannot be separated into simpler substances by chemical means
alphanumeric
Clue
Using both letters and numbers
Definition
of data, consisting of both letters and numbers, also ALPHANUMERICAL