Can you find the odd number in the following?

2716, 4135, 5321 and 7145

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

What two things can you never eat for breakfast?

why number 8549176320 is one of a kind?

Find the hidden tiger in the given optical illusion ?

How can you leave a room with two legs and return with six legs?

Count the number of triangles in the below picture?

Can you find out who is the kidnapper in below Picture and why, Explain ?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.