Move four matchsticks to the below square to form three squares?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

What 5-letter word typed in all capital letters can be read the same upside down?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

What you cannot hold but it is yours?

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?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

If we change the South-East direction into North and North-East into West and all others similarly.
Can you find out which direction will be in the place of South-West direction?

I always drive my customer away.

Who am I?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?