In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

What happened when the wheel was invented?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Through your logical capabilities, can you make 7 an even?

Decode below rebus
D
N
A
T
S , D

Which is Odd One Out and why?

4377

3954

9862

8454

9831

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (for example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (for example, 4 and 2 can be combined to form 4/2 or 2/4)

Question: how can we do this?

Can you find out the total number of triangles in the given figure?

Next Number in the Series,

5, 16, 49, 104, ?