I’m tall when I’m young, and I’m short when I’m old. What am I?

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?

What occurs twice in a week, once in a year but never in a day?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

Can you name an animal whose killing cannot be performed without spilling your own blood?

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?

Using Only Five 5's and any mathematical operator make sum as 37

What does does this rebus picture means ?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?