A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

How can you make the following equation true by drawing only one straight line: 5+5+5=550 ?

John is pretty weird. He likes toffees but hates chocolates. He loves books but never reads. He likes to build his troops in an online game but does not proceed with the war. He likes to go swimming but is afraid of water.

Seeking this behaviour, can you tell whether he likes balloons and parties?

How many triangles can you count in the figure given?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

How many Watermelons are there in the below picture?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

A King wants to send the diamond ring to his girlfriend securely. He got multiple locks and their corresponding keys. His girlfriend does not have any keys to these locks and if he sends the key without a lock, the key can be copied in the way. How can King send the ring to his girlfriend securely?