Can you fill the blank with the correct number?

6 30 870 756030 _____

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.

There are three light switches outside a room. One of the switches is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb?

The Puzzle: A girl, a boy, and a dog start walking down a road.

They start at the same time, from the same point, in the same direction.

The boy walks at 5 km/h, the girl at 6 km/h.

The dog runs from boy to girl and back again with a constant speed of 10 km/h. The dog does not slow down on the turn.
How far does the dog travel in 1 hour?

I have branches, but no fruit, trunk or leaves. What am I?

Decode this picture on T-Shirt and tell what it says ?

In the picture given below, can you find out which digit will take place of the question mark?

What does below rebus means ?

Can you move 2 matchsticks to form four equal sized squares.

What word is identified by the below rebus?

Your Your Your Your Your
Your Your Your Your Your