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?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

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

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000?

A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price be increased to sell it at the original price again?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

How much worth chocolate should he buy so that he can accommodate it in Rs 100?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?