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Mensa IQ Blood Relations and Direction Sense Flashcards

7 cards from real MENSA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Mensa IQ Blood Relations and Direction Sense flashcards as text

  1. A is the son of B. C is B's sister. D is C's mother. E is D's husband. How is A related to E?

    Answer: Grandson

    E is D's husband, and D is C's mother. C is B's sister, so D is also B's mother and E is B's father. A is B's son — so E is A's grandfather (paternal grandfather), making A E's grandson.

  2. A girl walks 3 km east, then 4 km north. She then turns to face her starting point. In what direction is she facing?

    Answer: Southwest

    She is 3 km east and 4 km north of her start; to face the start she must look south (back 4 km) and west (back 3 km), meaning she faces southwest.

  3. P's mother has only one son, Q. Q is married to R. R's son is S. How is P related to S?

    Answer: Uncle or Aunt

    P's mother's only son is Q, so Q is P's brother. Q and R are married and S is their son, making S P's nephew — so P is S's uncle or aunt.

  4. A man facing northwest walks straight ahead. After 10 km, in what general direction has he moved relative to his start?

    Answer: Northeast of his start... no — he moved toward the Northwest

    Walking while facing northwest means moving in the northwest direction — he is northwest of his starting point.

  5. A is B's father. B is C's brother. D is A's mother. E is D's son. How is C related to E?

    Answer: Niece or Nephew

    D is A's mother, and E is D's son — so E is A's sibling (A's brother or sister). B is A's child, and C is B's sibling — so C is A's grandchild. E is A's sibling, so E is C's great-uncle or the relationship is E is C's grandparent's sibling, making C E's grand-niece/nephew.

  6. A person walks 5 km north, turns right and walks 5 km, turns right and walks 5 km, turns right and walks 5 km. How far are they from their starting point and in which direction?

    Answer: 0 km — they are back at start

    North 5, East 5, South 5, West 5 — this traces a complete square, returning exactly to the start.

  7. X's son's wife is Y. Y is Z's daughter. How is X related to Z?

    Answer: X is Z's son-in-law's parent / co-parent-in-law

    Y is Z's daughter and also X's son's wife — Z is Y's parent, X is Y's spouse's parent; they are co-parents-in-law (the parents of a married couple), with no standard single-word English term.