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?

How is a fly different from a mosquito?

A research team went to a village somewhere between the jungles of Africa. Luckily for them, they reached the day when quite an interesting custom was to be performed. The custom was performed once a year as they confirmed and was performed in order to collect the taxes from every male of the region.

The taxes were to be paid in the form of grains. Everyone must pay pounds of grain equaling his respective age. This means a 20-year-old will have to pay 20 pounds of grain and a 30-year-old will pay 30 pounds of grain and so on.

The chief who collects the tax has 7 weights and a large 2-pan scale to weigh. But there is another custom that the chief can weigh only three of the seven weights.

Can you find out the weights of the seven weights? Also, what is the maximum age of the man that can be weighed for the payment of taxes?

Find the smallest sentence with all the English alphabet.

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Find the missing letter in the last circle logically in the given below picture.