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?

Where do fish keep their money?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

I am white when I am dirty, and black when I am clean. What am I?

What 8 letter word can have a letter taken away and it still makes a word. Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

What is next number in the pattern below:

131 517 192 123 ?

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.

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

What has 88 keys?