Size It Up

ALL ANSWERS · MIXED · DAILY No. 17 · SEPTEMBER 20, 2026

Size It Up answer: September 20

The five Mixed silhouettes for September 20, 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 17 ran from a binder clip (1.905 cm) to the Taj Mahal (73 m). The widest gap was round 3, Siemens Vectron against Plains Zebra, at 8.3×; the closest call was round 4, Saguaro Cactus against C-130J-30 Hercules, only 2.8× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Binder Clip (small, 3/4-inch) vs Passport (ID-3, closed)

    Passport · reference · 12.5 cm
    Binder Clip · true width · 1.905 cm

    6.6× shorter than the passport

    A small binder clip is 19.05 mm — three quarters of an inch — across its clamping edge.

  2. ROUND 2

    Green Spotted Pufferfish (adult) vs Table Tennis Ball

    Table Tennis Ball · reference · 4 cm
    Green Spotted Pufferfish · true length · 17 cm

    4.3× longer than the table tennis ball

    A green spotted pufferfish typically reaches about 15 cm, with reports of fish up to 17 cm long.

  3. ROUND 3

    Siemens Vectron vs Plains Zebra

    Plains Zebra · reference · 2.3 m
    Siemens Vectron · true length · 18.98 m

    8.3× longer than the plains zebra

    The electric Vectron is 18.98 m over its buffers. The pantographs add height, not train length.

  4. ROUND 4

    Saguaro Cactus (average adult height) vs C-130J-30 Hercules

    C-130J-30 Hercules · reference · 34.37 m
    Saguaro Cactus · true height · 12.2 m

    2.8× shorter than the C-130J-30 Hercules

    Saguaros eventually reach an average height of 12.2 m — 40 feet.

  5. ROUND 5

    Taj Mahal (dome) vs Hot Air Balloon (typical envelope)

    Hot Air Balloon · reference · 20 m
    Taj Mahal · true height · 73 m

    3.6× taller than the hot air balloon

    The Taj Mahal's dome rises 73 m — about the same as the Statue of Liberty without its pedestal.

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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MixedAnimals, planets and everyday things. AnimalsLength, height or wingspan — every round names the axis. GeographyEast–west or north–south span, never area. Pop CultureCheck the version. Compare the measured dimension. VehiclesLength end to end, or height for the ones that stand upright. DinosaursCompare estimated body length, from snout to tail tip. SpaceCompare body diameter. Rings and orbital distances are excluded. Everyday ObjectsLength, height or width — every round names the axis. InsectsBody length or wingspan — read the named measurement. LandmarksRead the named height, length or main span — including its endpoints. Food & DrinkRead the selected size and axis — length, diameter or container height.
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