When can we add 2 to 11 and get 1 as the correct answer?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

How many triangles are there in the picture below?

You have 10 balls with you. A friend of yours out of nowhere asks you to place those ten balls in five lines such that each of the lines has exactly 4 balls on them. He needs to check your intelligence. Prove him by doing the task.

As shown in the image, the nine Dogs are square fenced. By constructing just two square fences can you make sure that two Dogs cannot meet each other without crossing the fence?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

A blonde put eyeliner on her head. Why?

What does this rebus mean?

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Find the next number in the series.
1 10 24 43 67 ?

Find out the missing number in the picture attached: