If you say my name, I will no longer exist. What am I?

What is the probability of choosing the correct answer at random from the options below?

a) 1/4
b) 1/2
c) 1
d) 1/4

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

What demands an answer, but asks no questions

I’m tall when I’m young, and I’m short when I’m old. What am I?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

What number do you get when you multiply all of the numbers on a telephone's number pad?

You need to remove four matchsticks from the picture below and still need to maintain the following as in the original image.
1. 1st row contains 12 matchsticks
2. 2nd row contains 12 matchsticks
3. 1st column contains 12 matchsticks
4. 2nd column contains 12 matchsticks

Which is the correct shadow of the bird?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?