What does this rebus means ?

PROG WORKRESS

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

Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equal to 1/3.

(You can use one number only once)

Solve the below puzzle by replacing the question mark with the correct number.

3 6 12

4 8 16

5 10 ?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?

How do you go from 98 to 720 using just one letter?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

One day Jenifer meets the Lion and the Tiger in the Forest of Forgetfulness. She knows that the Lion lies on Mondays, Tuesdays, and Wednesdays, and tells the truth on the other days of the week. The Tiger, on the other hand, lies on Thursdays, Fridays, and Saturdays, but tells the truth on the other days of the week. Now they make the following statements to Jenifer:

Lion: Yesterday was one of my lying days.

Tiger: Yesterday was one of my lying days too.

What day is it?

I have teeth but i don't bite. Who Am I ?