Can you solve the maths in the below-given picture equation?

Christina is older than Kareena and Karishma. Katrina is older than Karishma and younger than Kareena. If Kareena has a brother named John, who is older than Christina, who's the youngest?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

What occurs twice in a week, once in a year but never in a day?

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

Count the number of squares in the picture below.

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?