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

What Word am I Looking For ?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?

I am an odd number. Take away a letter and I become even. What number am I?

When is the top of a mountain similar to a savings account?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.

Decode below rebus
D
N
A
T
S , D

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?