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.

Riddle:

There are 2 ducks in front of 2 other ducks. There are 2 ducks behind 2 other ducks. There are 2 ducks beside 2 other ducks. How many ducks are there?

Just four, in a square formation.

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Riddle:

Three playing cards in a row. Can you name them with these clues? There is a two to the right of a king. A diamond will be found to the left of a spade. An ace is to the left of a heart. A heart is to the left of a spade. Now, identify all three cards.

Ace of Diamonds, King of Hearts, Two of Spades.

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Riddle:

There is a clothing store in Bartlesville. The owner has devised his own method of pricing items. A vest costs \$20, socks cost \$25, a tie costs \$15 and a blouse costs \$30. Using the method, how much would a pair of underwear cost?

\$45. The pricing method consists of charging \$5 for each letter required to spell the item.

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Riddle:

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

1.

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Riddle:

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

51 and 15. 42 and 24. 60 and 06.

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Riddle:

Take eight small sticks, four of which are half the length of the other four. Make three equal squares out of the sticks.

Use the longer four sticks to be sharing sides between the squares and at the end their should be three intertwined squares.

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Riddle:

What two whole, positive numbers that have a one-digit answer when multiplied and a two-digit answer when added?

1 and 9.

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Riddle:

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

The same. They both weigh a pound!

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Riddle:

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?

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.

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Riddle:

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?