Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

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?

Can you find the company name in the pictogram below?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

What jumps when it walks and sits when it stands?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

How is a fly different from a mosquito?

The cream is heavier than Milk. True or False?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?