Can you solve this picture maths equation?

Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?

During which month do people sleep the least?

He runs but never walks. Murmurs, but never talks. Has a bed, but never sleeps. And has a mouth, but never eats?

Can you count the number of triangles in the given picture?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

What question can you never answer yes to?

The following "Brain Bat" means Slow Down.
S
L
O
W

Using the same logic, can you tell us what does the following Brain Bat means ?
E
V
I
G

I am quite hot but become too cold if you remove the first two letters. What am I?