What common phrase is represented by the below lines

Easy going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Medium going:
Weak, 'I'm going.'
Tough, 'I'm staying.'

Tough going:
Weak, 'I can't do it, I'm staying!'
Tough, 'Let's get going.'

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

Write the next letter in this sequence.
O, T, T, F, F, S, S, E, __
**Hint: It is a Number Series Puzzle

There is something which you can be arrested for attempting but not for successfully completing.

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

What do you think with the below Picture ?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

Can you decipher the below rebus?

PBLUESAISNUERSES

A girl says this to her best friend: “I was born in 1955, and I celebrated my 17th birthday last weekend.” Her best friend thinks she’s lying, but she’s actually correct. How is that possible?