Problem of the Week

A riddle problem is a question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning, typically presented as a game. Below is a list of the past problem of the week riddles in descending chronological order.

Which Weighs More?

POW: 06-27-2022

What weighs more? A pound of feathers or a pound of stones?

Answer: The same. They both weigh a pound!

Gallons Of Water

POW: 06-20-2022

You have two container, a 5 gallon and a 3 gallon container. How do you measure out 4 gallons?

Answer: Fill up the 3 gallon container and pour the 3 gallons into the 5 gallon container.Then, fill the 3 gallon container back up, and pour it into the 5 gallon container.The 3 gallon container will have 1 gallon left. Empty the 5 gallon container.Pour the remining 1 gallon into the 5 gallon container.Then fill the 3 gallon container back up and pour it into the 5 gallon container.Thus, you have 4 gallons.

Lily The Lillypad

POW: 06-13-2022

Lily is a lilypad in a small pond. Lilly doubles her size each day, On the 20th day she covers the whole pond. On what day was Lily half the size of the pond?

Answer: Day 19, it's not 10 because on day 20 she doubled from day 19, so 19 must be half the size of the pond.

4x As Old

POW: 06-06-2022

I am four times as old as my daughter. In 20 years time I shall be twice as old as her. How old are we now?

Answer: I am 40 and my daughter is 10.

Bees And Flowers

POW: 05-30-2022

In a pond, there are some flowers with some bees hovering over them. If both the following statements are true: 1. If each bee lands on a flower, one bee doesn't get a flower. 2. If two bees share each flower, there is one flower left out. How many flowers and bees are there?

Answer: 4 bees and 3 flowers.

Four Digit Number

POW: 05-23-2022

Find the four digit number in which the first digit is one fourth of the last digit, the second digit is 6 times the first digit, and the third digit is the second digit plus 3. What is it?

Answer: 1694.

After Tomorrow

POW: 05-16-2022

If the day before yesterday is the 23rd, then what is the day after tomorrow?

Answer: The 27th.

Water Balloons

POW: 05-09-2022

Robert and David were preparing to have a water balloon fight. "No Fair" cried Robert, "You have 3 times as many as I do!" David said "Fine!" and gave Robert 10 more balloons. "Still not fair!" argued Robert, "You still have twice as many as I do." How many more balloons must David give Robert for them to have the same number?

Answer: David must give Robert another 20 water balloons, giving them each 60. Robert started with 30 water balloons and David with 90.

1000 Bucks

POW: 05-02-2022

A man told his son that he would give him $1000 if he could accomplish the following task. The father gave his son ten envelopes and a thousand dollars, all in one dollar bills. He told his son, "Place the money in the envelopes in such a manner that no matter what number of dollars I ask for, you can give me one or more of the envelopes, containing the exact amount I asked for without having to open any of the envelopes. If you can do this, you will keep the $1000." When the father asked for a sum of money, the son was able to give him envelopes containing the exact amount of money asked for. How did the son distribute the money among the ten envelopes?

Answer: The contents or the ten envelopes (in dollar bills) should be as follows: $1, 2, 4, 8, 16, 32, 64, 128, 256, 489. The first nine numbers are in geometrical progression, and their sum, deducted from 1,000, gives the contents of the tenth envelope.