Three baskets sit on the porch: one filled with corn, one with gourds, and one with apples. Each basket has a weight tag that is either entirely correct or entirely wrong. - The corn basket tag says '10 lbs'. - The gourds basket tag says '15 lbs'. - The apples basket tag says '20 lbs'. The actual weights are 10 lbs, 15 lbs, and 20 lbs, but no basket has the weight stated on its tag. If the corn basket actually weighs 20 lbs, what is the actual weight of the apples basket?
15 lbs
The corn basket tag says 10 lbs, but it actually weighs 20 lbs (so its tag is wrong). Since no basket has the weight stated on its tag, the available weights are 10, 15, and 20. Corn is 20. The remaining actual weights are 10 and 15. The gourds tag says 15 lbs. Since gourds cannot weigh 15 lbs (no tag can be correct), gourds must weigh 10 lbs. That leaves 15 lbs for the apples basket.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Hard. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
More logic riddles
Five gears are linked in a straight chain: Gear A turns Gear B, B turns C, C turns D, and D turns Gear E. If Gear A rotates in a clockwise direction, in which direction does Gear E rotate?
A line goes: rainbow, green hat, rainbow, green hat, rainbow. What comes next?
You have 9 golden acorns that look identical, but 1 of them is slightly heavier than the other 8 (which all weigh the exact same amount). Using a balance scale with two pans, what is the minimum number of weighings guaranteed to locate the heavy acorn?
The sand castle is bigger than the shell, and the swimmer is bigger than the sand castle. Which one is the middle size?
At the community feast, five tables are arranged in a straight line, numbered 1 to 5 from left to right. - Table 3 has a turkey centerpiece. - Table 1 is immediately next to the table with a pumpkin centerpiece. - The pie centerpiece is on a table with a higher number than the turkey centerpiece. - The corn centerpiece is on table 1. Which table has the pumpkin centerpiece?
Three boxes are labeled 'Apples', 'Oranges', and 'Apples and Oranges'. All three labels are guaranteed to be completely incorrect. You are allowed to pull out and look at just one single piece of fruit from the box labeled 'Apples and Oranges'. Which box's true contents can you immediately identify from that single piece?

