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What comes next: 1, 3, 6, 10, 15, ?

Type:Math
Reveal answer

The answer is

21

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These are triangular numbers. The gaps are +2, +3, +4, and +5, so the next gap is +6.

#mathType: Math#number pattern#teens and adults

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One brick weighs 1 kg plus half a brick. How much does one brick weigh?

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2 kg

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Reveal answer

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Type:Math
Reveal answer

The answer is

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How can you add five to nine and get two?

Type:Math
Reveal answer

The answer is

On a clock: 9 o’clock plus 5 hours is 2 o’clock

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