What does this rebus mean?

O
N
C
E
TIME

Through your logical capabilities, can you make 7 an even?

Teacher ask the student

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

what did student replied ?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

Solve the counting riddle by identifying the number of triangles in the given picture.

Replace the question mark with the correct number below.

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

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?