Numbers Puzzles
57.  What is the value of 56 + –19? 

Answer  

58.  You have two bags each containing six balls. The first bag contains balls numbered 1 to 6 and the second bag contains balls numbered 7 to 12. A ball is drawn out of bag one and another ball is drawn out of bag two. What are the chances that at least one of the balls drawn out is an odd numbered ball? 

Answer  

59.  0, 1, 2, 4, 6, 9, 12, 16, ? What number should replace the question mark? 

Answer  

60.  You have 59 cubic blocks. What is the minimum number that needs to be taken away in order to construct a solid cube with none left over? 

Answer  
