Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

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?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

Our product and our sum always give the same answer. Who are we?

Find the number of squares in the below-given picture.

How many triangles are there in the picture below?

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?