How can you leave a room with two legs and return with six legs?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

What does below Rebus mean ?

esgg sgeg gegs gsge

Open a Laptop which is password protected. Hint for the password is given as below:

1 mobile 3 books 2 Boards 1 night 4 balls 2 lighters 1 ghost 1 hat 3 watches

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

Can you find out the total number of triangles in the given figure?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?