Choose or find odd number - 144 , 168 , 196 , 256

B. 168

Choose or find odd number pair - (140 - 45) , (110 - 35) , (100 - 30) , (80 - 25)

C. 100 - 30

Choose or find odd word - Intimacy , Enmity , Attachment , Friendship

B. ENMITY

Choose or find odd word - Lapies , Stalactites , Cliffs , Sinkholes , Stalagmites

C. CLIFFS

Choose or find odd word - Molar , Canine , Enamel , Incisors

C. ENAMEL