If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

The two towns are exactly 100 km apart. John leaves City A driving at 30 km/hr and Jacob leaves City B half an hour later driving at 60 km/hr. Who will be closer to City A when they meet?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Can you name four days which start with the letter 'T'?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

If you say my name, I will no longer exist. What am I?

A person is found murdered in his Chamber. When the crime scene is investigated, the Investigator find out that there is a calendar on which the victim has written a few numbers with his blood. The numbers are 4, 11, 11 and 4.

There are four suspects in the murder, John, Jacob, Anna and Lee. Can you find out who is the murderer?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

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