How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

If a boy blows 18 bubbles,
Then pops 6 eats 7 and then
He pops 5 and blows 1.
How many are left?

When does a USA Potato change its nationality?

There are forty elephants and they have forty-fore heads. How can this be possible?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

How many sides does a circle have?

A landlord calls both of his sons and tells them that their horses will now decide who will transfer the inheritance. He tells them to race along the land till the end and the one whose horse will be slower will win and be the heir to all the property.

Both of them keep wandering for days but to no result. Then they ask a wise man regarding it. The man advises them on the matter after which they jump on the horses and race as fast as they can till the end. Why did they do it?

What did the wise man say?

Can you find out which number multiplied by itself will give the output as 12345678987654321?