A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

Count the number of squares in the picture below.

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

Rearrange the letters in "new door" to make one word.

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

What happened when the wheel was invented?

Can you find the 09 errors in the picture below?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.