Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Why 1729 is a magic number? Answer Logically.

You are given 16 witch hats. The hats are divided in four different colours – red, blue, green and yellow. Every colour has been assigned to four hats. Now each of the hat will be glued with a label of an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’. But you can label one sign only once on one colour. In such an arrangement, the hats can be uniquely defined by its colour and symbol.

Can you arrange all the 16 hats in a 4x4 grid in a fashion that no two rows and columns have a repetition of colour or sign?
We have arranged four hats in the below picture to assist you.

Can you decipher the below rebus?

PBLUESAISNUERSES

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see?

Can you complete the sequence?

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

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

Different lights make me strange by changing me into different sizes. What am I?

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

What does this rebus photo means?