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Which parts of these framework bridges are in tension and which parts are in compression?

In a league of 5 football teams which play in a round robin tournament show that it is possible for all five teams to be league leaders.

Take any pair of numbers, say 9 and 14. Take the larger number, fourteen, and count up in 14s. Then divide each of those values by the 9, and look at the remainders.

Where will the spaceman go when he falls through these strange planetary systems?

Explore these X-dice with numbers other than 1 to 6 on their faces. Which one is best?

How would you massage the data in this Chi-squared test to both accept and reject the hypothesis?

See how the weight of weights varies across the globe.

How can you quickly sort a suit of cards in order from Ace to King?