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.

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

In the Thar desert, 3 men found a big 24L Jar is full of water. Since there is a shortage of water so they decided to distribute the water among themselves such that they all have equal amounts of it. But they only have a 13L, a 5L and an 11-litre Jar.

How do they do it?

What is the Surname of Barbie Doll?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

During which month do people sleep the least?

I have Rs.50 and I spend it in the way as below.

I am white when I am dirty, and black when I am clean. What am I?