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

Two guards were on duty outside a barracks. One faced up the road to watch for anyone approaching from the North. The other looked down the road to see if anyone approached from the South. Suddenly one of them said to the other, "Why are you smiling?"

How did he know his companion was smiling?

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

Can you count the number of matches in the picture below ?

Can you find out who is the kidnapper in below Picture and why, Explain ?

This one is a popular quiz/puzzle. Can you find out the names of the websites depicted using the emojis in this picture?

What can you serve, but never eat?