Analogy questions follow the format A : B :: C : ? — "A is to B as C is to what?" The key is identifying the exact relationship between A and B, then applying it to C.
Common Relationship Types
Part to whole: Wheel : Car :: Page : Book
Tool to action: Pen : Write :: Knife : Cut
Item to category: Oak : Tree :: Salmon : Fish
Cause to effect: Rain : Flood :: Sun : Drought
Degree: Warm : Hot :: Damp : Soaked
Opposites: Dark : Light :: Loud : Quiet
Always form a precise sentence: "A [verb] B". Then test that sentence with C and your answer. The more specific your sentence, the less likely you are to pick a distractor.
Building Vocabulary
Read quality long-form content daily — broadsheets, non-fiction books, essays. When you encounter an unfamiliar word, look it up immediately and use it in a sentence that day. Spaced repetition apps like Anki make retention far more efficient than passive reading alone.
Put it into practice
Take the free IQ Centre test — 20 questions across 5 cognitive domains, instant score and full breakdown.