Decode below rebus
D
N
A
T
S , D

What four weights can be used to balance from 1 to 30 pounds?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

A Strange thing happened in the Year 1777. Christmas occurs on Wednesday and New Year on Monday. How is that possible?

What has no start, end, or centre?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

In the image given, you can find several triangles. Can you count them all?