Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Solve below rebus puzzle?

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

Be active and find the killer in the picture Riddle below.

The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

If,

A = 1

B = 2

C = 3

...

...

Z = 26.

Based on above rule, you need to find an eleven letter word whose letter sum is equal to 52.

Who is that with a neck and no head, two arms and no hands? What is it?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?