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

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

A beggar on the street can make one cigarette out of every 6 cigarette butts he finds. After one whole day of searching and checking public ashtrays the beggar finds a total of 72 cigarette butts. How many cigarettes can he make and smoke from the butts he found?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

How can you leave a room with two legs and return with six legs?

Which tank will fill first?

Whats the next number in the below number sequence pattern.

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?