Can You Guess These

A woman gave old and dull gold bangles to a goldsmith for polishing to restore their glitter. The goldsmith dipped the gold bangles in a particlular solution. The bangles sparkled like new but their weight was reduced drastically. Can you guess the solution used by the dishonest gold smith.?

In a burning matchstick, with flame at one end, the other end held by you never becomes hot (as shown in fig.) Can you guess the reason?

You are told that 1,331 is a perfect cube.Can you guess without factorisation what is its cube root? Similarly,guess the cube roots of 4913,12167,32768 .

A lady went to the market to buy a blanket. The shopkeeper showed her blankets made of acrylic fibres as well as made of wool. She preferred to buy an acrylic blanket. Can you guess why?

Look at several examples of rational numbers in the form (p)/(q)(q!=0), where p and q are integers with no common factors other than 1 and having terminating decimal representations.Can you guess what property q must satisy?

In each figure alongside,a letter of the alphabet is shown along with a vertical line. Take the mirror image of the letter in the given line.Find which letters look the same after reflection (i.e.which letters look the same in the image) and which do not.Can you guess why