Can you place six X (crosses) in below board without making three in a row in any way ?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

John drives to his office at 20km/hr. After reaching the office, he realizes that today is a holiday. He went back at an average speed of 30km/hr. Discounting the time spent in the stoppage what was the average speed of his journey?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

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?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

When we see 2 but call 10?

In a basket of apples,
when counted in twos, there was one extra
when counted in threes, there were two extra when counted in fours, there were three extra
when counted in fives, there were four extra
when counted in sixes, there was five extra.

However, if the apples were counted in sevens, no extra apple was left. Can you calculate the minimum number of apples that were present in the basket?

What has 13 hearts but no other organs?