If you say my name, I will no longer exist. What am I?

Can you find out the remainder when 3^300 is divided by 5?

Give it food and it will live; give it water and it will die.

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

The more it dries, the wetter it becomes. Can you tell what it is?

Two boys were admitted to a school. When the headmaster asks them about their parents, they tell him that they have same parents (father and mother). On further inquiry, it turns out that they both share the same date for their birthday.

"Are you twins," ask the headmaster.
"No," replies the boys.

Is it possible?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

What is the last thing you take off before bed?

Find the Next Number in the Sequence

2 9 3 1 8 4 3 6 5 7 ?