Logic Riddles

Logic riddles with answers involve looking at situations and making judgements about them by ruling out impossibilities. If you like solving maths puzzles, you will most probably like logic riddles as well.

Jar Half Full of Bacteria

The number of bacteria in a large sealed jar doubles every minute. The bacteria will take an hour to fill the jar. When will the jar be half full?

Riddle Answer

Bicycle Race

In a bicycle race, the man who came two places in front of the last man finished one ahead of the man who came fifth. How many contestants were there?

Riddle Answer

Twenty Coins

Twenty men, women and children earn twenty coins between them. Each man earns 3 coins, each woman 1.5 coins and each child 0.5 coin. How many men, women and children are there?

Riddle Answer

Tina’s Age

Mark is 6 years old. His sister Tina is half of his age. So when Mark is 100 years old, how old is Tina?

Riddle Answer

Three Days before Wednesday

If the day after tomorrow is three days before Wednesday, what day is today?

Riddle Answer