Why are all black people so quick ?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

10+10 and 11+11 can give you the same answer.

Explain how?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

An old Woman left INR 33,333 to be divided equally among two fathers and two sons and each was to receive INR 11,111.
How was this possible?

If 1+9+8=1, what is 2+8+9?

Count the number of lines in the image below ?