What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

You can see three almost identical images below. Can you spot the odd one out from them?

Count the number of balls in picture below:

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

Why Aeroplane windows are round?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

What is the coolest letter in the alphabet?

Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

Can you solve this picture maths equation?