A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?

Which five letter word can be added at the end of below word to form a
valid word?

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Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

What number comes next in the series?

5 15 5 18 5 24 14 20 _

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height?

Thomas has missed an excessive number of days of school, so he must meet with Principal Davis. Mr. Davis asks him "Why on Earth have you missed so many days?" Thomas replies "There just isn't enough time for school. I need 8 hours of sleep a day, which adds up to about 122 days a year. Weekends off is 104 days a year. Summer vacation is about 60 days. If I spend about an hour on each meal, that's 3 hours a day or 45 days a year. I need at least 2 hours of exercise and relaxation time each day to stay physically and mentally fit, adding another 30 days. Add all of that up and you get about 361 days. That only leaves 4 days for school." The principal knows Thomas is full of it, but can't figure out why. Where is Thomas going wrong?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

How many letters are in the alphabet?