A woman had three old coins - a silver dollar, a quarter, and a dime. Each coin was a little battered and had a piece missing. She found that exactly the same fraction had broken away from each coin.
What fraction of each was missing if the value of the remaining bits of coins was now exactly one dollar in total?
For this puzzle it can be assumed that ½ of a coin is worth ½ of its value.
[Ref: ZQJS] Based on a puzzle by Henry Ernest Dudeney.
Hint: A dollar is 100 cents, a quarter is 25 cents and a dime is 10 cents.
Answer: 7÷27 of each coin was missing.
The original value of the three coins was 100 + 25 + 10 = 135, and the new value was 100. So 35÷135 of the original value has been removed and 35÷135 = 7÷27. QED.
What is represented by this BrainBat?
[Ref: ZSDS] © Kevin Stone
Concave [C on CAVE]
Undersea Cave [under C CAVE].
Can you fill the thermometers with mercury, such that the numbers outside the grid indicate how many cells in each row and column contain mercury.
Mercury always starts filling from the bottom of a thermometer and not every thermometer has to contain mercury.
[Ref: ZVFT] © Johan de Ruiter Visit www.puzzlepicnic.com for more Thermometer Puzzles.
Hint: Tops of thermometers can't be filled unless the bottoms are.
Using the digits 1 to 9, create three 3-digit numbers. The second number is twice the first. The third number is three times the first.
[Ref: ZGEB] Submitted by Adailton J. Chiaradia.
Hint: The first number starts with 3.
Using the BrainTracker grid below, how many words can you find? Each word must contain the central
H and no letter can be used twice. The letters do not have to be connected. Proper nouns are not allowed, however, plurals are. Can you find the nine letter word?
Excellent: 51 words. Good: 35 words. Average: 25 words.
[Ref: ZTSG] © Kevin Stone
Hint: Every word must contain the central letter.
afresh, ash, fish, FISHERMAN, fresh, hairs, ham, hams, hare, harem, harems, hares, has, he, hear, hears, heir, heirs, hem, hems, hen, hens, her, hernia, hernias, hers, hi, him, hire, hires, his, marsh, mash, masher, mesh, mishear, rash, sham, shame, share, she, sheaf, shear, shim, shin, shine, shiner, shire, shrine.
afresh, ah, ahem, arshin, ash, ashen, ashier, ashmen, eh, famish, fash, feh, fehs, fish, fisher, FISHERMAN, fresh, freshman, ha, hae, haem, haemin, haemins, haems, haen, haes, hafis, hair, hairs, ham, hame, hames, hams, hanse, hare, harem, harems, hares, harm, harmin, harmine, harmines, harmins, harms, has, he, hear, hears, heir, heirs, hem, hemin, hemins, hems, hen, hens, her, herm, herma, hermai, herms, hern, hernia, hernias, herns, hers, hes, hi, hie, hies, him, hin, hins, hire, hires, his, hisn, hm, ihram, ihrams, inmesh, marish, marsh, mash, masher, mashie, menhir, menhirs, mesh, mishear, nah, rah, rash, resh, rhea, rheas, sh, sha, shairn, sham, shame, share, sharif, sharn, she, shea, sheaf, shear, sherif, shier, shim, shin, shine, shiner, shire, shmear, shri, shrine, sinh.