VIOLIN is an instrument used to create MUSIC. PAINTBRUSH is an instrument used to create ART. The relationship is tool-to-output.
A man's brother's son = the man's nephew. Therefore, the man is the uncle of his brother's son.
Each term is multiplied by 2: 10×2=20, 20×2=40, 40×2=80, 80×2=160, 160×2=320, 320×2=640.
WINTER is characterized by COLD temperature. SUMMER is characterized by HOT temperature. The relationship is season-to-temperature characteristic.
DOCTOR works in a HOSPITAL. TEACHER works in a SCHOOL. The relationship is profession-to-workplace.
C is 2nd from left, B is immediately right of C, so B is 3rd from left.
OCEAN is made of/contains WATER. DESERT is made of/contains SAND. The relationship is composition.
Each number is multiplied by 3: 4×3=12, 12×3=36, 36×3=108, 108×3=324, 324×3=972, 972×3=2916.
Triangle, Square, Pentagon, and Hexagon are all polygons (have straight sides and vertices). Circle is the only curved shape without straight sides.
LAMP produces LIGHT. THERMOMETER measures TEMPERATURE. Relationship is object-to-purpose.