A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?
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5 cents. (The bat costs $1.05.)If 5 machines take 5 minutes to make 5 widgets, how long would 100 machines take to make 100 widgets?
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5 minutes. Each machine makes one widget in 5 minutes.A patch of lily pads doubles in size every day. It takes 48 days to cover the whole lake. How long does it take to cover half the lake?
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47 days.How many times can you subtract 10 from 100?
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Once. After that, you are subtracting from 90.What number becomes zero when you subtract 15 from half of it?
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30.I am an odd number. Take away one letter and I become even. What number am I?
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Seven (remove the s: “even”).A farmer has 17 sheep. All but 9 run away. How many are left?
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9.If you pass the person in second place in a race, what place are you in?
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Second place.A doctor gives you three pills and tells you to take one every half hour. How long until they are all gone?
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One hour.Some months have 31 days and others have 30. How many have 28?
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All twelve.