Which Number is the odd one out?

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

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

Its something that each of us devours,
Not just us but birds, beats, trees, and flowers,
Frets iron and nibbles steel,
Toil hard stones to meal,
Exterminates king, collapse town,
And blows the mountains down.

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

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?

What is the Surname of Barbie Doll?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.