A plane crashed between the border of Mexico and America. Where do you bury the survivors?

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.

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

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

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

Find the smallest sentence with all the English alphabet.

Using eight eights and addition only, can you make 1000?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.