Logic Puzzles

Six barrels of water were shipped to a shop. The numbers in figure 18 show the numbers of liters in each barrel. Two customers bought five of the six barrels in the same time, one bought two and the other bought three. Given that the second bought twice as much water as the first, which of the barrels wasn’t sold?

• 16
• 19
• 20
• 31

Railway Tickets
 "I'm a railway ticket seller," said the young lady. "People think this job is easy. They probably have no idea how many tickets one has to sell, even at a small station. There are 25 stations on my line and I have to sell different tickets for each section up and down the line. How many different kinds of tickets do you think I have at my station?"

• 800
• 600
• 1200
• 400

The man emptied a box of matches on the table and  divided them into three uneven heaps. There are altogether 48 matches .  
If he took as many matches from the first heap as there are in the second and add them to the second, and then take as many from the second as there are in the third and add them to the third, and finally take as many from the third as there are in the first and add them to the first-well, if he did all this, the heaps will all have the same number of matches. How many were there originally in each heap?"

• 16 - 8 - 24 
• 12 - 10 - 26
• 22 - 14 -  12
• 16 - 20 - 12

A conundrum enthusiast was asked how old he was. The reply was quite ingenious. "Take my age three years hence, multiply it by 3 and then subtract three times my age three years ago and you will know how old I am." Well, how old was he?

• 20
• 16
• 18
• 24

Some horses were grazing in a meadow under the control of the shepherds. When counting all the legs in the meadow, the number was 82 feet. When counting all the heads –horses’ and humans’-, the number was 26. How many  shepherds were there in the meadow?

• 11 Shepards
• 14 Shepards
• 15 Shepads
• 10 Shepards

A team of six carpenters and a joiner undertook to perform a job. Each carpenter earned $20, but the joiner got 43  more than the average earnings of all the seven team members. How much did the joiner earn?

• $23
• $23.5
• $22.5
• $24