How many triangles can you find in this given picture?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

Why do people go to bed?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

Can you find a five letter word that is left with only two letters if one is removed?

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 ?

Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L.

Can you find an "ology" that begins with a P?

Make a sentence consisting of three words that have the whole alphabet.

What is the word or phrase?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?