I travel all around the world but always stay in the corner. What am I?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

Which is the smallest number that you can write using all the vowels exactly once?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

Can you find out who is the kidnapper in below Picture and why, Explain ?

In the image below, can you find the value of an angle(y)

I have eight fingers and two thumbs but I do not live. What Am I?

Which part of London exists in France as well ?