There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

what does the below rebus means?

Find the next number in the sequence

5 12 24 36 ?

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 ?

Can you write down eight eights so that they add up to one thousand?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

What is the word or phrase?

What word begins and ends with an E, but has only one letter?

Using eight eights and addition only, can you make 1000?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?