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?

why number 8549176320 is one of a kind?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

Before Mount Everest was discovered, what was the highest mountain in the world?

Why is the Hole below a Lock?

Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

Two guards were guarding the camp.Guard-1 was looking towards the south to make sure no threat is coming from the road.Guard-2 was looking at the north to make sure no threat is coming from the top. Suddenly Guard-1 ask the Guard-2 why he is smiling?How Guard-1 knows that Guard-2 is smiling?

What common phrase is represented by the below lines

Easy going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Medium going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Tough going:
Weak, 'I can't do it, I'm staying!'
Tough, 'Let's get going.'