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.

My Age Today

My age today is three times what it will be three years from now, minus three times what my age was three years ago. How old am I?

Riddle Answer

100 Widgets

If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?

Riddle Answer

All Roses Are Flowers

All roses are flowers. Some flowers fade quickly. Therefore some roses fade quickly. True of False?

Riddle Answer

Electrician and Plumber

There was an electrician and a plumber waiting in line for the movies. One of them was the father of the other one’s son. How could this be?

Riddle Answer

8 Balls Weighing Problem

You are given 8 identical looking balls. One of them is heavier than the rest of the 7 (all the others weigh exactly the same). You are provided with a simple mechanical balance scale. How can you find the heavier ball by using the scale only twice?

Riddle Answer