Critical Thinking Puzzles

The Old car of Mary requires tyres to be changed after each 24000 km. If she wants to go for 42000 km journey then how many minimum number o...

There is a bus with 7 girls. Each girl has 7 bags. In each bag, there are 7 big cats. Each big cat has 7 little cats. Each cat has 4 legs. H...

What is the maximum number of slices can you obtain by cutting a cake with only 4 cuts?

If a clock takes 7seconds to strike 7, how long will the same clock take to strike 10?

There is one lily in the pond on 1st june. There are two in the pond on 2nd june . There are four on 3rd june and so on. The pond is full wi...

There are 19 red balls and one black ball. Ten balls are put in one jar and the remaining 10 are put in another jar. What is the possibility...

Two Persons A and B. Person A picks a random number from 1 to 1000. Then person B picks a random number from 1 to 1000. What is the probabil...