I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

Find the Goldfish below the given Image.

What is the next number in this series?

4,12,84,3612....

What is the longest word in the dictionary?

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?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Through your logical capabilities, can you make 7 an even?

I have a head like a cat and feet like a cat, but I am not a cat. What am I?

What does this mean?

CCCCCCC

Christina makes tasty toast in a small pan. After toasting one side of a slice, she turns it over. Each side takes 30 seconds. The pan can only hold two slices.
How can she toast both sides of three slices in 1 & 1/2 instead of 2 minutes?