The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

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?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

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

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