If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

Rectify the following equality 101 - 102 = 1 by moving just one digit.

We are a group of eight brothers. We consider the weak, yet we protect the king in every battle. If we move ahead, we never turn back. Who are we?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

What is both possible and impossible at the same time?

What is the largest number you can write with just 3 digits?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

A man always keeps a spare tyre in his car. To make full use of all the five tyres, he changes the tyres in a manner that for a distance of 1, 00,000 km, each of them runs the same distance.

Can you calculate the distance travelled by each tyre on that journey?

Solve the mathematical equation in the picture below.