Door to doer logic

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Door to doer logic

Pencil impressions are superficial, in the sense that they do not percolate into the bottom layers of paper.

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The Hole Truth

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The Hole Truth

Now, in a vague topological sort of way, the navel basically is a hole in the middle of a baby.

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We Have Lift-Off

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We Have Lift-Off

Let me extend this problem a little further if it proves to be a little too simple. Let the five elevators be at floor numbers 20, 20, 22, 24 and 21.

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All Above Water

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All Above Water

What is the secret behind the erasing action of an eraser? That is, why can't a pencil eraser erase pen marks also?

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Up The Down Escalator

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Up The Down Escalator

Not bad, right? Anyway, that was for your information! Now solve this: Walking slowly down a descending escalator, you reach the bottom after taking 50 steps.

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Playback Sound FX

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Playback Sound FX

It doesn't really make a difference whether you open the door a teensy crack or hurl it wide open - the sound storming into your room is about the same. How come?

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As The Crow Fills

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As The Crow Fills

If the crow selected perfect spherical 1cm diameter pebbles to fill the pot, what should have been the minimum level for the crow to not go thirsty?

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