Which is heavier: a ton of bricks or a ton of feathers?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

You need to remove two matchsticks to make the below equation true. Can you do it ?

How many triangles can you find in this given picture?

What do you think with the below Picture ?

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.

Can you decipher the below rebus?

PBLUESAISNUERSES

What seven-letter word has hundreds of letters in it?

You are given with the following sum. Each of the letters can be decoded as a digit. If we tell you that D = 5, then can you solve it entirely?

DONALD
+GERALD
=ROBERT