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

What Word am I Looking For ?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

Who has married many women but was never married?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

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?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

Which country gets ill every time?

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

There are forty elephants and they have forty-fore heads. How can this be possible?

You are mixing a mixture of cement and Sand with five gallons of water. You have a garden hose giving you all the water you need. The problem is that you only have a four-gallon bucket and a seven-gallon bucket and neither has graduation marks. Find a method to measure five gallons.