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?

what does the below rebus mean?

Find the next number in the series below

21 32 54 87 131 ?

I inserted a coin in a bottle and closed its mouth with the help of a cork. Now, I was able to take the coin out from the bottle without taking out the cork or breaking the bottle. Can you tell me how I did it?

10 people came into a hotel with 9 rooms and each guest wanted his own room. The bellboy solved this problem.
He asked the tenth guest to wait for a little with the first guest in room number 1. So in the first room, there were two people. The bellboy took the third guest to room number 2, the fourth to number 3, ..., and the ninth guest to room number 8. Then he returned to room number 1 and took the tenth guest to room number 9, still vacant.
How can everybody have his own room?

Begin with a word, five letters to my name,
Remove the first and last but I am the same
Take out my middle and still, I remain.
What word am I?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

What is the last thing you take off before bed?

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?