ALL ANSWERS · MIXED · DAILY No. 48 · OCTOBER 21, 2026

Size It Up answer: October 21

The five Mixed silhouettes for October 21, with the true sizes. If you have not played yet, this page is a spoiler — play these five first, then come back to argue with the numbers.

Day 48 ran from a brick (21.5 cm) to the Hoover Dam (221 m). The widest gap was round 3, Hoover Dam against Lincoln Memorial, at 3.8×; the closest call was round 1, Chimpanzee against Plains Zebra, only 1.5× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Chimpanzee (arm span) vs Plains Zebra

    Plains Zebra · reference · 2.3 m
    Chimpanzee · true length · 1.5 m

    1.5× shorter than the plains zebra

    A chimpanzee's outstretched arms span about 1.5 m — wider than it is tall.

  2. ROUND 2

    Brick (UK, 215 mm) vs Rock Pigeon

    Rock Pigeon · reference · 33 cm
    Brick · true length · 21.5 cm

    1.5× shorter than the rock pigeon

    A UK-format brick is 21.5 cm long before mortar is added.

  3. ROUND 3

    Hoover Dam vs Lincoln Memorial (length)

    Lincoln Memorial · reference · 57.8 m
    Hoover Dam · true height · 221 m

    3.8× taller than the Lincoln Memorial

    Hoover Dam is 221 m high — about the height of the Golden Gate's towers.

  4. ROUND 4

    Hubble Space Telescope vs Airbus A320neo

    Airbus A320neo · reference · 37.57 m
    Hubble Space Telescope · true length · 13.2 m

    2.8× shorter than the Airbus A320neo

    The Hubble Space Telescope is 13.2 m long, about the size of a school bus.

  5. ROUND 5

    Airship (Zeppelin NT) vs Marina Bay Sands (hotel tower, to the SkyPark)

    Marina Bay Sands · reference · 206.9 m
    Airship · true length · 75 m

    2.8× shorter than Marina Bay Sands

    A Zeppelin NT — the Goodyear blimp of today — is 75 m long.

Beat these tomorrow

Every round is worth up to 100 points: within 6% of the true size scores 100, half or double scores 45, five times off scores zero. The daily puzzle is the same five for everyone and refreshes at midnight in your time zone; if you want more than five, Size It Up Unlimited draws fresh pairs from the whole library for as long as you like.

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