Each month, a new set of puzzles will be posted. Come back next month for the solutions and a new set of puzzles, or subscribe to have them sent directly to you.
Puzzle One
62 people have taken part in a survey on modes of transport they use to travel to work. They have been asked whether they travel by Car, Train and Bus only or a combination of these three modes of travel.

 Twice as many people use the Car only as use the Car and Train.
 Four more people use the Bus only than the Train only.
 Twice as many people use the Train and Bus as use all three modes.
 The same number of people use the Car and Bus as use the Bus only.
 Thirteen more people use the Car only than the Bus only.
 Two people use all three modes of transport.

 How many people travel by Car only?
 How many people travel by Train only?
 How many people travel by Bus only?
 How many people travel by Car and Bus?
Puzzle Two
Find the number equivalent for the following alphametic expressions to make the equations true. Each letter is unique with values from 0 to 9. Note: There may be more than one solution.

 ZERO + ONE + TWO = THREE
 TWO + THREE + SEVEN = TWELVE
 THREE + THREE + ONE = SEVEN
 SEVEN + SEVEN + SIX = TWENTY
Feedback
There are more than one way of doing these puzzles and may well be more than one answer. Please let me and others know what alternatives you find by commenting below. We also welcome general comments on the subject and any feedback you'd like to give.
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Last month's solutions
In the following ARITHmaze puzzle, go to ‘START’ and proceed through this numerical maze, following instructions as provided, until you get to the ‘FINISH’ box. What number did you finish with? Solution: 