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

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

In the below-given picture of a pretty girl, there is something wrong. Can you find out what it is?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

What jumps when it walks and sits when it stands?

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?

One day, I thought of ways that can be used for creating a palindrome. So I decided that I will turn into a larger number by adding the reversed digits to the original number and keep doing it till I finally obtained a palindrome.

I am not sure if this process will always result in a palindrome eventually but I was able to produce a four-digit palindrome. Can you guess my starting number?

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?