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

A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?

81 x 9 = 801. What must you do to make the this equation true?

Can you fill the blank with the correct number?

6 30 870 756030 _____

What can you catch but never throw?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?