Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

What word begins and ends with an E, but has only one letter?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

In a science lab, a petri dish hosts a healthy colony of yeast for an experiment. Now every minute, all the yeast cells divide into two. At noon, there was just a single cell of yeast and at 1:22, the Petri dish was half full. Can you calculate when the dish will be full of yeast?

In a competitive exam, each correct answer could win you 10 points and each wrong answer could lose you 5 points. You sat in the exam and answered all the 20 questions, which were given in the exam.
When you checked the result, you scored 125 marks on the test.

Can you calculate how many answers given by you were wrong?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

Can you count the number of blocks in the picture below?

Why Aeroplane windows are round?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?