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

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

John's five friends Rachel, Jacob, Phoebe, Joey and Chandler live on the same road.

Rachel lives in the house: A, Jacob lives in the house: B, Phoebe lives in the house: C, Joey lives in the house:D, Chandler lives in the house: E

Mathematically
B*C*D = 1260
B + C + D = 2E
2A = E

The road numbers run from 2 to 222.

Can you tell me the house number of each of John's friends?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?

You need to arrange three 7 and mathematical symbols to form number 1?

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

If 21x = 79x, what is the value of x?

What's a single-digit number with no value?

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

Solve the mathematical equation in the picture below.