Answer:
一 ICHI, ITSU, hito(tsu) - one
由 YUU, YU, YUI, yoshi - reason, cause
日 NICHI, JITSU, hi, ka - sun, day
二 NI, futa(tsu), futa - two
八 HACHI, ya(ttsu), ya(tsu), ya, yo - eight
The ink would dribble down, making them look like different characters!
卩 The "Fushizukuri" radical - stamp, seal
申 SHIN, mou(su) - say, be named
月 GETSU, GATSU, tsuki - moon, month
干 KAN, hi(ru), ho(su) - get dry, dry, drink up
小 SHOU, chii(sai), ko - small