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All of internal angles in miraculous pentagram are...

right
obtuse
supplementary
acute
Pentagramma mirificum (Latin for miraculous pentagram) is a star polygon on a sphere, composed of five great circle arcs, whose all internal angles are right angles. This shape was described by John Napier in his 1614 book along with rules that link the values of trigonometric functions of five parts of a right spherical triangle (two angles and three sides). The properties of pentagramma mirificum were studied, among others, by Carl Friedrich Gauss.
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flagthe Netherlands
60%
10%
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20%
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flagFrance
54%
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flagGreece
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flagthe Philippines
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flagPakistan
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flagPoland
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flagIndia
36%
29%
15%
17%
84
flagAustralia
34%
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3%
42%
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flagthe United States
32%
22%
28%
16%
89
flagGermany
32%
23%
11%
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34
flagCanada
25%
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6%
37%
16
flagthe United Kingdom
22%
28%
14%
34%
63
flagRepublic of Ireland
0%
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10

Which direction is not possible to point at when standing at the South Pole?

east
west
north
neither east, west, nor south

What is the maximum distance a plane can fly travelling constantly North?

10,002 km
20,004 km
40,007 km
It can fly endlessly (as long it can)

How many edges does a Möbius strip have?

one
two
three
four

In astronomy, a moving line that divides the daylit side and the dark night side of a planetary body is called...

an isocline
a terminator
an isohelia
a circle of latitude