If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

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?

By using 'because' continuously three times, can you make an English statement ?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

What always comes into a house through the keyhole?

What building has the most stories?

I am a five-letter word under you,
Remove the first letter and I am above you,
Remove the second as well and I am around you.

Who am I?

Two Twins Jack and Jill were standing back to back and suddenly they started running in opposite direction for 4 kilometres and then turn to left and run for another 3 kilometres.

what is the distance between the Baggio twins when they stop ?

You are given four results as below:
1111 = F
2222 = E
3333 = T
Then, can you find out how to code 4444?