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Difficulty: 3 of 5 Random: Fathers and Sons (in General) Rating: 3.50
Father A is twice the age of the difference in years of the ages of Father B and Son A, who is one and a half times older than Son B.

Father B is currently twice the age of Son A is going to be when Son B will be double the age he is now.

All of the ages are multiples of five.

How old is Father A?

(Solution Posted, 14 Comments) Submitted on 2003-06-11 by Lewis   
Difficulty: 3 of 5 Bonus: A kiss is just a kiss... (in Numbers) Rating: 3.33
Substitute numbers for letters (same letter, same number; different letters, different numbers) so the following equation works out:

KISS × KISS = PASSION

(Solution Posted, 4 Comments) Submitted on 2004-06-09 by Federico Kereki   
Difficulty: 3 of 5Go away ! (in Numbers)
Posted on 2020-03-30 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 2 of 5Digits of numbers (in Numbers)
Posted on 2020-03-30 by Math Man (No Solution Yet, 1 Comments)
Difficulty: 4 of 5Spacy Colors III (in Just Math)
Posted on 2020-03-27 by JLo (No Solution Yet, 0 Comments)
Difficulty: 4 of 5Division by e (in Just Math) Rating: 5.00
Posted on 2020-03-25 by Danish Ahmed Khan (No Solution Yet, 7 Comments)
Difficulty: 4 of 5Super Symmetry (in Just Math)
Posted on 2020-03-23 by JLo (No Solution Yet, 0 Comments)
Difficulty: 3 of 518 PE2US's (in Word Problems)
Posted on 2020-03-18 by Steven Lord (Solution Posted, 1 Comments)
Difficulty: 2 of 5p(Ascending Number) closest to .01 (in Probability)
Posted on 2020-03-16 by Larry (No Solution Yet, 2 Comments)
Difficulty: 5 of 5Hard Reciprocal Sum (in Calculus)
Posted on 2020-03-13 by Brian Smith (Solution Posted, 1 Comments)
Difficulty: 3 of 5Tan2Mid (in Geometry)
Posted on 2020-03-11 by Bractals (Solution Posted, 1 Comments)
Difficulty: 2 of 5What time is it now? (in General)
Posted on 2020-03-09 by Ady TZIDON (Solution Posted, 4 Comments)
Difficulty: 3 of 5co-prime unit fractions (in Numbers)
Posted on 2020-03-06 by Danish Ahmed Khan (No Solution Yet, 7 Comments)
Difficulty: 3 of 5The Celebrated Jumping Frog of Perplexus County (in Probability)
Posted on 2020-03-04 by Larry (No Solution Yet, 2 Comments)
Difficulty: 2 of 5Brush up your Latin ! (in Word Problems)
Posted on 2020-03-02 by Ady TZIDON (No Solution Yet, 4 Comments)
Difficulty: 3 of 53 equilateral triangles in a rectangle (in Geometry)
Posted on 2020-02-28 by Jer (Solution Posted, 2 Comments)
Difficulty: 2 of 5PYHIYP #5 Seven up! (in Sequences)
Posted on 2020-02-26 by Ady TZIDON (No Solution Yet, 2 Comments)

Recently Posted Solutions:
Difficulty: 2 of 5PYHIYP #4 (in Logic)
Submitted By Ady TZIDON. Solution posted on 2020-03-29 03:13:02
Difficulty: 5 of 5Hard Reciprocal Sum (in Calculus)
Submitted By Brian Smith. Solution posted on 2020-03-27 12:31:46
Difficulty: 2 of 5What time is it now? (in General)
Submitted By Ady TZIDON. Solution posted on 2020-03-25 02:59:46
Difficulty: 3 of 518 PE2US's (in Word Problems)
Submitted By Steven Lord. Solution posted on 2020-03-18 14:15:47
Difficulty: 3 of 5Tan2Mid (in Geometry)
Submitted By Bractals. Solution posted on 2020-03-15 13:45:57
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