There is something which is always coming but never arrives?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

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 ?

If you read clockwise, you can form a word by inserting three missing letters in the picture given below. Can you do it?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

What type of tree can I carry in my hand?