What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

Can you solve the below algebraic mathematical equation?

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

Count the number of squares in the picture below.

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

How many triangles can you find in this given picture?

I am an odd number. Take away a letter and I become even. What number am I?

Can you find the company name in the pictogram below?

Eight of us go fourth, not back, to protect our king from an attack. What are we?